Fix file guid conflict.

Signed-off-by: Eric Dong <eric.dong@intel.com>
Reviewed-by: Ruiyu Ni <ruiyu.ni@intel.com>

git-svn-id: https://edk2.svn.sourceforge.net/svnroot/edk2/trunk/edk2@13430 6f19259b-4bc3-4df7-8a09-765794883524
MU SOURCE COMMIT:917ab9077d0a77abe8abb66499d79d3d49bada2f

Platforms/OvmfPkg/AcpiPlatformDxe/AcpiPlatformDxe.inf

@@ -15,7 +15,7 @@
 [Defines]
   INF_VERSION                    = 0x00010005
   BASE_NAME                      = AcpiPlatform
-  FILE_GUID                      = cb933912-df8f-4305-b1f9-7b44fa11395c
+  FILE_GUID                      = 49970331-E3FA-4637-9ABC-3B7868676970
   MODULE_TYPE                    = DXE_DRIVER
   VERSION_STRING                 = 1.0
   ENTRY_POINT                    = AcpiPlatformEntryPoint