Add StackCheckLib Instances to Platform DSC Files (#216)

## Description

An instance of StackCheckLib must be in each DSC to accommodate
-fstack-protector and /GS flags.

- [x] Impacts functionality?
- **Functionality** - Does the change ultimately impact how firmware
functions?
- Examples: Add a new library, publish a new PPI, update an algorithm,
...
- [ ] Impacts security?
- **Security** - Does the change have a direct security impact on an
application,
    flow, or firmware?
  - Examples: Crypto algorithm change, buffer overflow fix, parameter
    validation improvement, ...
- [ ] Breaking change?
- **Breaking change** - Will anyone consuming this change experience a
break
    in build or boot behavior?
- Examples: Add a new library class, move a module to a different repo,
call
    a function in a new library class in a pre-existing module, ...
- [ ] Includes tests?
  - **Tests** - Does the change include any explicit test code?
  - Examples: Unit tests, integration tests, robot tests, ...
- [ ] Includes documentation?
- **Documentation** - Does the change contain explicit documentation
additions
    outside direct code modifications (and comments)?
- Examples: Update readme file, add feature readme file, link to
documentation
    on an a separate Web page, ...

## How This Was Tested

Tested in pipelines

## Integration Instructions

N/A

ArmPkg/ArmPkg.dsc

@@ -96,6 +96,7 @@
   ArmSvcLib|ArmPkg/Library/ArmSvcLib/ArmSvcLib.inf              # MU_CHANGE
   SafeIntLib|MdePkg/Library/BaseSafeIntLib/BaseSafeIntLib.inf   # MU_CHANGE
   DxeMemoryProtectionHobLib|MdeModulePkg/Library/MemoryProtectionHobLibNull/DxeMemoryProtectionHobLibNull.inf # MU_CHANGE
+  NULL|MdePkg/Library/StackCheckLibNull/StackCheckLibNull.inf # MU_CHANGE: /GS and -fstack-protector support
 
 [LibraryClasses.common.PEIM]
   HobLib|MdePkg/Library/PeiHobLib/PeiHobLib.inf
@@ -109,7 +110,7 @@
   NULL|MdePkg/Library/CompilerIntrinsicsLib/ArmCompilerIntrinsicsLib.inf    # MU_CHANGE
 
   # Add support for GCC stack protector
-  NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
+  # NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf               # MU_CHANGE
 
 # MU_CHANGE [BEGIN]
 [LibraryClasses.common.MM_STANDALONE]

ArmPkg/Drivers/ArmCrashDumpDxe/ArmCrashDumpDxe.dsc

@@ -46,7 +46,8 @@
   # NULL|ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf   # MU_CHANGE
   NULL|MdePkg/Library/CompilerIntrinsicsLib/ArmCompilerIntrinsicsLib.inf  # MU_CHANGE
 
-  NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
+  # NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf           # MU_CHANGE
+  NULL|MdePkg/Library/StackCheckLibNull/StackCheckLibNull.inf # MU_CHANGE: /GS and -fstack-protector support
 
 [Components.common]
   ArmPkg/Drivers/ArmCrashDumpDxe/ArmCrashDumpDxe.inf

ArmPlatformPkg/ArmPlatformPkg.dsc

@@ -77,7 +77,8 @@
 
   #NULL|ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf          # MU_CHANGE
   NULL|MdePkg/Library/CompilerIntrinsicsLib/ArmCompilerIntrinsicsLib.inf        # MU_CHANGE
-  NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
+  # NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf                 # MU_CHANGE
+  NULL|MdePkg/Library/StackCheckLibNull/StackCheckLibNull.inf # MU_CHANGE: /GS and -fstack-protector support
 
   ArmSvcLib|ArmPkg/Library/ArmSvcLib/ArmSvcLib.inf                              # MU_CHANGE
 

ArmVirtPkg/ArmVirt.dsc.inc

@@ -99,7 +99,8 @@
   NULL|MdePkg/Library/CompilerIntrinsicsLib/ArmCompilerIntrinsicsLib.inf  # MU_CHANGE
 
   # Add support for GCC stack protector
-  NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
+  # NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf # MU_CHANGE
+  NULL|MdePkg/Library/StackCheckLibNull/StackCheckLibNull.inf # MU_CHANGE: /GS and -fstack-protector support
 
   # ARM Architectural Libraries
   CacheMaintenanceLib|ArmPkg/Library/ArmCacheMaintenanceLib/ArmCacheMaintenanceLib.inf

DynamicTablesPkg/DynamicTablesPkg.dsc

@@ -32,10 +32,11 @@
   PrintLib|MdePkg/Library/BasePrintLib/BasePrintLib.inf
   UefiBootServicesTableLib|MdePkg/Library/UefiBootServicesTableLib/UefiBootServicesTableLib.inf
   UefiDriverEntryPoint|MdePkg/Library/UefiDriverEntryPoint/UefiDriverEntryPoint.inf
+  NULL|MdePkg/Library/StackCheckLibNull/StackCheckLibNull.inf # MU_CHANGE: /GS and -fstack-protector support
 
 [LibraryClasses.ARM, LibraryClasses.AARCH64]
   NULL|ArmPkg/Library/CompilerIntrinsicsLib/CompilerIntrinsicsLib.inf
-  NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf
+  # NULL|MdePkg/Library/BaseStackCheckLib/BaseStackCheckLib.inf # MU_CHANGE
   PL011UartLib|ArmPlatformPkg/Library/PL011UartLib/PL011UartLib.inf
 
 [Components.common]