export SimpleModuleDoNotConvertBp2build for AIDL

Bug: 298246873
Change-Id: I06ed7bb8fc1139731a2b48440a91aeb7f383efff
diff --git a/bp2build/testing.go b/bp2build/testing.go
index 997df64..0e7ef44 100644
--- a/bp2build/testing.go
+++ b/bp2build/testing.go
@@ -570,7 +570,7 @@
 	ctx.RegisterForBazelConversion()
 }
 
-func simpleModuleDoNotConvertBp2build(typ, name string) string {
+func SimpleModuleDoNotConvertBp2build(typ, name string) string {
 	return fmt.Sprintf(`
 %s {
 		name: "%s",