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/Support/LockFileManager.h b/linux-x64/clang/include/llvm/Support/LockFileManager.h
index 57e4fbd..ab66621 100644
--- a/linux-x64/clang/include/llvm/Support/LockFileManager.h
+++ b/linux-x64/clang/include/llvm/Support/LockFileManager.h
@@ -77,7 +77,9 @@
   operator LockFileState() const { return getState(); }
 
   /// For a shared lock, wait until the owner releases the lock.
-  WaitForUnlockResult waitForUnlock();
+  /// Total timeout for the file to appear is ~1.5 minutes.
+  /// \param MaxSeconds the maximum total wait time in seconds.
+  WaitForUnlockResult waitForUnlock(const unsigned MaxSeconds = 90);
 
   /// Remove the lock file.  This may delete a different lock file than
   /// the one previously read if there is a race.