nginx: security bump to version 1.12.1

Fixes CVE-2017-7529 - Nginx versions since 0.5.6 up to and including 1.13.2
are vulnerable to integer overflow vulnerability in nginx range filter
module resulting into leak of potentially sensitive information triggered by
specially crafted request.

For more details, see:
http://mailman.nginx.org/pipermail/nginx-announce/2017/000200.html

Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nginx/nginx.hash

@@ -1,2 +1,2 @@
 # Locally calculated after checking pgp signature
-sha256	b4222e26fdb620a8d3c3a3a8b955e08b713672e1bc5198d1e4f462308a795b30	nginx-1.12.0.tar.gz
+sha256	8793bf426485a30f91021b6b945a9fd8a84d87d17b566562c3797aba8fac76fb	nginx-1.12.1.tar.gz

package/nginx/nginx.mk

@@ -4,7 +4,7 @@
 #
 ################################################################################
 
-NGINX_VERSION = 1.12.0
+NGINX_VERSION = 1.12.1
 NGINX_SITE = http://nginx.org/download
 NGINX_LICENSE = BSD-2-Clause
 NGINX_LICENSE_FILES = LICENSE