Implement cc_object vendor snapshot

cc_object modules are also necessary for vendor snapshot.

Bug: 157106227
Test: m vendor-snapshot
Change-Id: Idf4fd37a26f6f712f3cbab43133622f9f9bd9372
Merged-In: Idf4fd37a26f6f712f3cbab43133622f9f9bd9372
(cherry picked from commit 502679e061)

cc/vndk_prebuilt.go

@@ -186,6 +186,10 @@ func (p *vndkPrebuiltLibraryDecorator) nativeCoverage() bool {
 	return false
 }
 
+func (p *vndkPrebuiltLibraryDecorator) isSnapshotPrebuilt() bool {
+	return true
+}
+
 func (p *vndkPrebuiltLibraryDecorator) install(ctx ModuleContext, file android.Path) {
 	arches := ctx.DeviceConfig().Arches()
 	if len(arches) == 0 || arches[0].ArchType.String() != p.arch() {