bp2build: add support for soong_config_module_type.

Test: CI, go unit test
Bug: 198556411
Change-Id: Idf862904d51d822f92af0c072341c31b7a02fc64
diff --git a/android/prebuilt_test.go b/android/prebuilt_test.go
index a1f8e63..fa40d1f 100644
--- a/android/prebuilt_test.go
+++ b/android/prebuilt_test.go
@@ -510,9 +510,9 @@
 	ctx.RegisterModuleType("prebuilt", newPrebuiltModule)
 	ctx.RegisterModuleType("source", newSourceModule)
 	ctx.RegisterModuleType("override_source", newOverrideSourceModule)
-	ctx.RegisterModuleType("soong_config_module_type", soongConfigModuleTypeFactory)
-	ctx.RegisterModuleType("soong_config_string_variable", soongConfigStringVariableDummyFactory)
-	ctx.RegisterModuleType("soong_config_bool_variable", soongConfigBoolVariableDummyFactory)
+	ctx.RegisterModuleType("soong_config_module_type", SoongConfigModuleTypeFactory)
+	ctx.RegisterModuleType("soong_config_string_variable", SoongConfigStringVariableDummyFactory)
+	ctx.RegisterModuleType("soong_config_bool_variable", SoongConfigBoolVariableDummyFactory)
 }
 
 type prebuiltModule struct {