nginx: unified indentation character and add additional config entry

The original configure file mixed tab and space
characters as indentation, so use 4 spaces as the
default indentation character.

Add /etc/nginx/conf.d/*.conf as nginx additional configure
files. Then we can add individual conf file for other http
applications without modify the main nginx configure file.

Signed-off-by: James Qian <sotux82@gmail.com>

net/nginx/Makefile

@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 
 PKG_NAME:=nginx
 PKG_VERSION:=1.15.7
-PKG_RELEASE:=1
+PKG_RELEASE:=2
 
 PKG_SOURCE:=nginx-$(PKG_VERSION).tar.gz
 PKG_SOURCE_URL:=http://nginx.org/download/

net/nginx/files-luci-support/luci_nginx.conf

@@ -46,4 +46,6 @@ http {
         include luci_uwsgi.conf;
 
     }
+
+    include /etc/nginx/conf.d/*.conf;
 }

net/nginx/files-luci-support/luci_nginx_ssl.conf

@@ -61,4 +61,6 @@ http {
         include luci_uwsgi.conf;
 
     }
+
+    include /etc/nginx/conf.d/*.conf;
 }