nginx: update to 1.12.1

Fixes: CVE-2017-7529

remove PKG_MD5SUM as it is deprecated

Signed-off-by: Uwe Arnold <donvipre@gmail.com>

net/nginx/Makefile

@@ -8,13 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nginx
-PKG_VERSION:=1.12.0
+PKG_VERSION:=1.12.1
 PKG_RELEASE:=1
 
 PKG_SOURCE:=nginx-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://nginx.org/download/
-PKG_HASH:=b4222e26fdb620a8d3c3a3a8b955e08b713672e1bc5198d1e4f462308a795b30
-PKG_MD5SUM:=995eb0a140455cf0cfc497e5bd7f94b3
+PKG_HASH:=8793bf426485a30f91021b6b945a9fd8a84d87d17b566562c3797aba8fac76fb
 PKG_MAINTAINER:=Thomas Heil <heil@terminal-consulting.de>
 PKG_LICENSE:=2-clause BSD-like license