Sign Drivers for OneBranch Testing (#3709)

.azure/obtemplates/run-bvt.yml

@@ -46,6 +46,14 @@ jobs:
       filePath: scripts/prepare-machine.ps1
       arguments: -ForTest
 
+  - ${{ if eq(parameters.kernel, true)}}:
+    - task: PowerShell@2
+      displayName: Sign Drivers
+      inputs:
+        pwsh: true
+        filePath: scripts/sign.ps1
+        arguments: -Arch ${{ parameters.arch }} -Config ${{ parameters.config }} -Tls Schannel
+
   - task: PowerShell@2
     displayName: Run BVTs
     timeoutInMinutes: 60