[GWP-ASan] Change sys/cdefs.h to features.h am: 0a460c676a am: 428d283918

Original change: https://android-review.googlesource.com/c/platform/external/gwp_asan/+/1703585

Change-Id: I62891a8ae351f01579c4792875f0045cb1c872f5
diff --git a/gwp_asan/platform_specific/utilities_posix.cpp b/gwp_asan/platform_specific/utilities_posix.cpp
index 338b531..7357963 100644
--- a/gwp_asan/platform_specific/utilities_posix.cpp
+++ b/gwp_asan/platform_specific/utilities_posix.cpp
@@ -6,7 +6,7 @@
 //
 //===----------------------------------------------------------------------===//
 
-#include <sys/cdefs.h> // IWYU pragma: keep (for __BIONIC__ macro)
+#include <features.h> // IWYU pragma: keep (for __BIONIC__ macro)
 
 #ifdef __BIONIC__
 #include "gwp_asan/definitions.h"