Revert "Update clang version to clang-r510928"

Revert submission 2804373-clang_r510928

Bug: http://b/301328082

Reason for revert: Broke aosp-main/aosp_x86-next-userdebug

Reverted changes: /q/submissionid:2804373-clang_r510928

Change-Id: I6802b329e8dbd9dce5a75aab76c43960765a8594
diff --git a/rust/bindgen.go b/rust/bindgen.go
index 85cc220..77ba277 100644
--- a/rust/bindgen.go
+++ b/rust/bindgen.go
@@ -29,7 +29,7 @@
 	defaultBindgenFlags = []string{""}
 
 	// bindgen should specify its own Clang revision so updating Clang isn't potentially blocked on bindgen failures.
-	bindgenClangVersion = "clang-r510928"
+	bindgenClangVersion = "clang-r498229b"
 
 	_ = pctx.VariableFunc("bindgenClangVersion", func(ctx android.PackageVarContext) string {
 		if override := ctx.Config().Getenv("LLVM_BINDGEN_PREBUILTS_VERSION"); override != "" {