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/Host/HostNativeThread.h b/linux-x64/clang/include/lldb/Host/HostNativeThread.h
index 8bf6584..cef08f0 100644
--- a/linux-x64/clang/include/lldb/Host/HostNativeThread.h
+++ b/linux-x64/clang/include/lldb/Host/HostNativeThread.h
@@ -6,8 +6,8 @@
 //
 //===----------------------------------------------------------------------===//
 
-#ifndef lldb_Host_HostNativeThread_h_
-#define lldb_Host_HostNativeThread_h_
+#ifndef LLDB_HOST_HOSTNATIVETHREAD_H
+#define LLDB_HOST_HOSTNATIVETHREAD_H
 
 #include "HostNativeThreadForward.h"