Update ATOM string routines to latest

Change-Id: I22a600e7f172681cfd38ff73a64e3fd07b284959
Signed-off-by: Lu, Hongjiu <hongjiu.lu@intel.com>
Signed-off-by: Bruce Beare <bruce.j.beare@intel.com>
diff --git a/libc/Android.mk b/libc/Android.mk
index a034c50..e619267 100644
--- a/libc/Android.mk
+++ b/libc/Android.mk
@@ -357,7 +357,7 @@
 	arch-x86/string/memset_wrapper.S \
 	arch-x86/string/strcmp_wrapper.S \
 	arch-x86/string/strncmp_wrapper.S \
-	arch-x86/string/strlen.S \
+	arch-x86/string/strlen_wrapper.S \
 	bionic/pthread.c \
 	bionic/pthread-atfork.c \
 	bionic/pthread-timers.c \