Update prebuilt Clang to r416183b from Android.

https://android.googlesource.com/platform/prebuilts/clang/host/
linux-x86/+/06a71ddac05c22edb2d10b590e1769b3f8619bef

clang 12.0.5 (based on r416183b) from build 7284624.

Change-Id: I277a316abcf47307562d8b748b84870f31a72866
Signed-off-by: Olivier Deprez <olivier.deprez@arm.com>
diff --git a/linux-x64/clang/include/lldb/Utility/StringLexer.h b/linux-x64/clang/include/lldb/Utility/StringLexer.h
index d9806c1..52f98e8 100644
--- a/linux-x64/clang/include/lldb/Utility/StringLexer.h
+++ b/linux-x64/clang/include/lldb/Utility/StringLexer.h
@@ -1,4 +1,4 @@
-//===--------------------- StringLexer.h ------------------------*- C++ -*-===//
+//===-- StringLexer.h -------------------------------------------*- C++ -*-===//
 //
 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
 // See https://llvm.org/LICENSE.txt for license information.
@@ -6,14 +6,14 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef utility_StringLexer_h_
-#define utility_StringLexer_h_
+#ifndef LLDB_UTILITY_STRINGLEXER_H
+#define LLDB_UTILITY_STRINGLEXER_H
 
 #include <initializer_list>
 #include <string>
 #include <utility>
 
-namespace lldb_utility {
+namespace lldb_private {
 
 class StringLexer {
 public:
@@ -53,4 +53,4 @@
 
 } // namespace lldb_private
 
-#endif // #ifndef utility_StringLexer_h_
+#endif // LLDB_UTILITY_STRINGLEXER_H