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/llvm/CodeGen/RuntimeLibcalls.h b/linux-x64/clang/include/llvm/CodeGen/RuntimeLibcalls.h
index f71f39e..86e24ca 100644
--- a/linux-x64/clang/include/llvm/CodeGen/RuntimeLibcalls.h
+++ b/linux-x64/clang/include/llvm/CodeGen/RuntimeLibcalls.h
@@ -15,6 +15,7 @@
 #define LLVM_CODEGEN_RUNTIMELIBCALLS_H
 
 #include "llvm/CodeGen/ValueTypes.h"
+#include "llvm/Support/AtomicOrdering.h"
 
 namespace llvm {
 namespace RTLIB {
@@ -60,6 +61,10 @@
   /// UNKNOWN_LIBCALL if there is none.
   Libcall getSYNC(unsigned Opc, MVT VT);
 
+  /// Return the outline atomics value for the given opcode, atomic ordering
+  /// and type, or UNKNOWN_LIBCALL if there is none.
+  Libcall getOUTLINE_ATOMIC(unsigned Opc, AtomicOrdering Order, MVT VT);
+
   /// getMEMCPY_ELEMENT_UNORDERED_ATOMIC - Return
   /// MEMCPY_ELEMENT_UNORDERED_ATOMIC_* value for the given element size or
   /// UNKNOW_LIBCALL if there is none.