nginx: update to 1.17.8

Signed-off-by: DENG Qingfang <dengqf6@mail2.sysu.edu.cn>

net/nginx/Makefile

@@ -8,12 +8,12 @@
 include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nginx
-PKG_VERSION:=1.17.7
-PKG_RELEASE:=5
+PKG_VERSION:=1.17.8
+PKG_RELEASE:=1
 
 PKG_SOURCE:=nginx-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=https://nginx.org/download/
-PKG_HASH:=b62756842807e5693b794e5d0ae289bd8ae5b098e66538b2a91eb80f25c591ff
+PKG_HASH:=97d23ecf6d5150b30e284b40e8a6f7e3bb5be6b601e373a4d013768d5a25965b
 
 PKG_MAINTAINER:=Thomas Heil <heil@terminal-consulting.de> \
 				Ansuel Smith <ansuelsmth@gmail.com>