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/Initialization/SystemInitializer.h b/linux-x64/clang/include/lldb/Initialization/SystemInitializer.h
index e616ad1..4426bfb 100644
--- a/linux-x64/clang/include/lldb/Initialization/SystemInitializer.h
+++ b/linux-x64/clang/include/lldb/Initialization/SystemInitializer.h
@@ -6,8 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef LLDB_INITIALIZATION_SYSTEM_INITIALIZER_H
-#define LLDB_INITIALIZATION_SYSTEM_INITIALIZER_H
+#ifndef LLDB_INITIALIZATION_SYSTEMINITIALIZER_H
+#define LLDB_INITIALIZATION_SYSTEMINITIALIZER_H
 
 #include "llvm/Support/Error.h"