Include 'debug.hypervisor.metrics_tag' in metric names

Vendor code can set a property to tag performance metric names. This can
be useful if devices in the lab have varying performance
characteristics.

Test: atest -p packages/modules/Virtualization:avf-postsubmit
Change-Id: I46478471571639a145079cdc296b9824f1328fc3
diff --git a/tests/hostside/helper/Android.bp b/tests/hostside/helper/Android.bp
index af88bb6..b2333ab 100644
--- a/tests/hostside/helper/Android.bp
+++ b/tests/hostside/helper/Android.bp
@@ -11,6 +11,7 @@
         "truth-prebuilt",
     ],
     static_libs: [
+        "MicrodroidTestHelper",
         "VirtualizationTestHelper",
     ],
 }