Allow 'vndk' tag in cc_defaults

'vndk' tag must be parsed in cc_defaults as well.

Test: build with a module that has 'vndk' tag in cc_defaults.
Change-Id: I21a5a831dbf8cae00be98c00f4bb98504da53c8d

cc/cc.go

@@ -1172,6 +1172,7 @@ func DefaultsFactory(props ...interface{}) android.Module {
 		&TidyProperties{},
 		&CoverageProperties{},
 		&SAbiProperties{},
+		&VndkProperties{},
 	)
 
 	android.InitDefaultsModule(module)