Convert ModuleProvder to generic providers API

Convert all of the callers of ModuleProvider/ModuleHasProvider to use the
type-safe android.SingletonModuleProvider API.

Bug: 316410648
Test: builds
Change-Id: I6f11638546b64749e451cebbf33140248dc1d193

java/code_metadata_test.go

@@ -30,9 +30,7 @@ func TestCodeMetadata(t *testing.T) {
 	).Module().(*soongTesting.CodeMetadataModule)
 
 	// Check that the provider has the right contents
-	data := result.ModuleProvider(
-		module, soongTesting.CodeMetadataProviderKey,
-	).(soongTesting.CodeMetadataProviderData)
+	data, _ := android.SingletonModuleProvider(result, module, soongTesting.CodeMetadataProviderKey)
 	if !strings.HasSuffix(
 		data.IntermediatePath.String(), "/intermediateCodeMetadata.pb",
 	) {