external/boringssl: Sync to 9bbdf5832de8a2d395303c669b594fc61c791f4d.

This includes the following changes:

https://boringssl.googlesource.com/boringssl/+log/c642aca28feb7e18f244658559f4042286aed0c8..9bbdf5832de8a2d395303c669b594fc61c791f4d

Test: BoringSSL CTS Presubmits.
Change-Id: Ieb6fcfee99c4cc496b2f6e1d3e6597784bd80189
diff --git a/src/crypto/fipsmodule/sha/asm/sha512-x86_64.pl b/src/crypto/fipsmodule/sha/asm/sha512-x86_64.pl
index 7ad7491..e62ad75 100755
--- a/src/crypto/fipsmodule/sha/asm/sha512-x86_64.pl
+++ b/src/crypto/fipsmodule/sha/asm/sha512-x86_64.pl
@@ -1,4 +1,11 @@
-#!/usr/bin/env perl
+#! /usr/bin/env perl
+# Copyright 2005-2016 The OpenSSL Project Authors. All Rights Reserved.
+#
+# Licensed under the OpenSSL license (the "License").  You may not use
+# this file except in compliance with the License.  You can obtain a copy
+# in the file LICENSE in the source distribution or at
+# https://www.openssl.org/source/license.html
+
 #
 # ====================================================================
 # Written by Andy Polyakov <appro@openssl.org> for the OpenSSL
@@ -88,9 +95,11 @@
 # Haswell	12.2	9.28(+31%)  7.80(+56%)	    7.66    5.40(+42%)
 # Skylake	11.4	9.03(+26%)  7.70(+48%)      7.25    5.20(+40%)
 # Bulldozer	21.1	13.6(+54%)  13.6(+54%(***)) 13.5    8.58(+57%)
+# Ryzen		11.0	9.02(+22%)  2.05(+440%)     7.05    5.67(+20%)
 # VIA Nano	23.0	16.5(+39%)  -		    14.7    -
 # Atom		23.0	18.9(+22%)  -		    14.7    -
 # Silvermont	27.4	20.6(+33%)  -               17.5    -
+# Knights L	27.4	21.0(+30%)  19.6(+40%)	    17.5    12.8(+37%)
 # Goldmont	18.9	14.3(+32%)  4.16(+350%)     12.0    -
 #
 # (*)	whichever best applicable, including SHAEXT;
@@ -311,7 +320,6 @@
 	mov	$SZ*5($ctx),$F
 	mov	$SZ*6($ctx),$G
 	mov	$SZ*7($ctx),$H
-
 	jmp	.Lloop
 
 .align	16