Add efr32 unit test to cloud builds (#23256)

diff --git a/integrations/cloudbuild/build-all.yaml b/integrations/cloudbuild/build-all.yaml
index 30205be..40ecf82 100644
--- a/integrations/cloudbuild/build-all.yaml
+++ b/integrations/cloudbuild/build-all.yaml
@@ -44,6 +44,7 @@
               --target efr32-brd4161a-lock
               --target efr32-brd4161a-switch
               --target efr32-brd4161a-window-covering
+              --target efr32-brd4161a-unit-test
               --target efr32-brd4187c-window-covering
               --target esp32-c3devkit-all-clusters
               --target esp32-c3devkit-all-clusters-minimal
diff --git a/integrations/cloudbuild/smoke-test.yaml b/integrations/cloudbuild/smoke-test.yaml
index 8590dde..bc2e751 100644
--- a/integrations/cloudbuild/smoke-test.yaml
+++ b/integrations/cloudbuild/smoke-test.yaml
@@ -73,6 +73,7 @@
               --target efr32-brd4161a-light-rpc
               --target efr32-brd4161a-lock
               --target efr32-brd4161a-lock-rpc
+              --target efr32-brd4161a-unit-test
               build
               --create-archives /workspace/artifacts/
       waitFor: