Use build agent pool sonic-ubuntu-1c instead of sonic-common

Author: jimmyzhai

.azure-pipelines/test-docker-sonic-vs-template.yml

@@ -18,12 +18,16 @@ parameters:
   type: boolean
   default: false
 
+- name: pool
+  type: string
+  default: sonic-ubuntu-1c
+
 jobs:
 - job:
   displayName: vstest
   timeoutInMinutes: ${{ parameters.timeout }}
 
-  pool: sonic-common
+  pool: ${{ parameters.pool }}
 
   steps:
   - script: |

azure-pipelines.yml

@@ -146,6 +146,7 @@ stages:
   jobs:
   - template: .azure-pipelines/test-docker-sonic-vs-template.yml
     parameters:
+      pool: sonic-ubuntu-1c
       log_artifact_name: log
 
 - stage: TestAsan
@@ -154,6 +155,7 @@ stages:
   jobs:
   - template: .azure-pipelines/test-docker-sonic-vs-template.yml
     parameters:
+      pool: sonic-ubuntu-1c
       docker_sonic_vs_name: docker-sonic-vs-asan
       log_artifact_name: log-asan
       asan: true