Ignore test apexes from bp2build generated tags

Soong does not enforce apex_available on the contents of test apex. To
prevent special-casing test apexes in the apex validation aspect in
Bazel, drop the test apexes from the tags altogether.

( The core problem I am trying to solve is making sure that stub
libraries in Bazel have a single apex available. apex validation happens
to be a nice side benefit)

Bug: 277651159
Test: go test ./bp2build
Change-Id: Ibb3cfedb5c0f2cda0464bf3758c70b67cb5885d1
diff --git a/cc/proto.go b/cc/proto.go
index 97470e5..5d9aef6 100644
--- a/cc/proto.go
+++ b/cc/proto.go
@@ -207,7 +207,7 @@
 	protoAttrs.Min_sdk_version = m.Properties.Min_sdk_version
 
 	name := m.Name() + suffix
-	tags := android.ApexAvailableTags(m)
+	tags := android.ApexAvailableTagsWithoutTestApexes(ctx.(android.TopDownMutatorContext), m)
 	ctx.CreateBazelTargetModule(
 		bazel.BazelTargetModuleProperties{
 			Rule_class:        rule_class,