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/Analysis/CodeMetrics.h b/linux-x64/clang/include/llvm/Analysis/CodeMetrics.h
index 1482b66..eab24c8 100644
--- a/linux-x64/clang/include/llvm/Analysis/CodeMetrics.h
+++ b/linux-x64/clang/include/llvm/Analysis/CodeMetrics.h
@@ -15,15 +15,13 @@
 #define LLVM_ANALYSIS_CODEMETRICS_H
 
 #include "llvm/ADT/DenseMap.h"
-#include "llvm/ADT/SmallPtrSet.h"
 
 namespace llvm {
 class AssumptionCache;
 class BasicBlock;
 class Loop;
 class Function;
-class Instruction;
-class DataLayout;
+template <class T> class SmallPtrSetImpl;
 class TargetTransformInfo;
 class Value;