apex: choose stub according to min_sdk_version

Native modules within APEX should be linked with proper stub version
according to its min_sdk_version.

For example, when min_sdk_version is set to "29", libfoo in the apex
would be linked to libbar of version 29 from platform, even if it has
a newer version like 30.

Bug: 145796956
Test: m nothing (soong tests)
Change-Id: I4a0b2002587bc24b7deeb5d59b6eeba5e1db5b1f

cc/cc_test.go

@@ -2530,6 +2530,7 @@ func TestRuntimeLibsNoVndk(t *testing.T) {
 }
 
 func checkStaticLibs(t *testing.T, expected []string, module *Module) {
+	t.Helper()
 	actual := module.Properties.AndroidMkStaticLibs
 	if !reflect.DeepEqual(actual, expected) {
 		t.Errorf("incorrect static_libs"+