Revert "Revert "external/boringssl: sync with upstream.""

This reverts commit a04d78d392463df4e69a64360c952ffa5abd22f7.

Underlying issue was fixed.

Change-Id: I49685b653d16e728eb38e79e02b2c33ddeefed88
diff --git a/src/crypto/sha/asm/sha256-armv4.pl b/src/crypto/sha/asm/sha256-armv4.pl
index df71676..7e07147 100644
--- a/src/crypto/sha/asm/sha256-armv4.pl
+++ b/src/crypto/sha/asm/sha256-armv4.pl
@@ -168,7 +168,7 @@
 
 $code=<<___;
 #ifndef __KERNEL__
-# include "arm_arch.h"
+# include <openssl/arm_arch.h>
 #else
 # define __ARM_ARCH__ __LINUX_ARM_ARCH__
 # define __ARM_MAX_ARCH__ 7