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/sysprop.go b/cc/sysprop.go
index 0df290a..7ddd476 100644
--- a/cc/sysprop.go
+++ b/cc/sysprop.go
@@ -38,7 +38,7 @@
 }
 
 func Bp2buildSysprop(ctx android.Bp2buildMutatorContext, labels SyspropLibraryLabels, srcs bazel.LabelListAttribute, minSdkVersion *string) {
-	apexAvailableTags := android.ApexAvailableTags(ctx.Module())
+	apexAvailableTags := android.ApexAvailableTagsWithoutTestApexes(ctx.(android.TopDownMutatorContext), ctx.Module())
 	ctx.CreateBazelTargetModule(
 		bazel.BazelTargetModuleProperties{
 			Rule_class:        "sysprop_library",