Attempt to fix 'mutex.h' not found when building mutex_posix.

llvm-svn: 362149
GitOrigin-RevId: 9bd9a03ad04cc2377e5443c834b1af3f42617a39
diff --git a/platform_specific/mutex_posix.cpp b/platform_specific/mutex_posix.cpp
index e15bca8..8bd405e 100644
--- a/platform_specific/mutex_posix.cpp
+++ b/platform_specific/mutex_posix.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include "mutex.h"
+#include "gwp_asan/mutex.h"
 
 #include <assert.h>
 #include <pthread.h>