More partial compile optimizations

Add "disable_stub_validation" and "disable_api_lint"

Bug: b/394154271
Bug: b/396345437
Test: manual
Change-Id: I1dc2b52bb3bfc3275287c99dbc679290bfeece35
diff --git a/java/droiddoc.go b/java/droiddoc.go
index 225f201..3faf294 100644
--- a/java/droiddoc.go
+++ b/java/droiddoc.go
@@ -195,6 +195,9 @@
 				"them instead.")
 		}
 		return false
+	} else if ctx.Config().PartialCompileFlags().Disable_stub_validation &&
+		!ctx.Config().BuildFromTextStub() {
+		return false
 	} else if String(apiToCheck.Api_file) != "" && String(apiToCheck.Removed_api_file) != "" {
 		return true
 	} else if String(apiToCheck.Api_file) != "" {