package/nginx: add stream realip option

stream realip is available since version 1.11.4 and
https://github.com/nginx/nginx/commit/fe2774a9d689fa1bf201dd0e89449e3d9e4ad926

Signed-off-by: Fabrice Fontaine <fontaine.fabrice@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

package/nginx/Config.in

@@ -328,6 +328,11 @@ config BR2_PACKAGE_NGINX_STREAM
 
 if BR2_PACKAGE_NGINX_STREAM
 
+config BR2_PACKAGE_NGINX_STREAM_REALIP_MODULE
+	bool "ngx_stream_realip_module"
+	help
+	  Enable ngx_stream_realip_module
+
 config BR2_PACKAGE_NGINX_STREAM_SSL_MODULE
 	bool "ngx_stream_ssl_module"
 	select BR2_PACKAGE_OPENSSL

package/nginx/nginx.mk

@@ -224,6 +224,10 @@ endif # BR2_PACKAGE_NGINX_MAIL
 ifeq ($(BR2_PACKAGE_NGINX_STREAM),y)
 NGINX_CONF_OPTS += --with-stream
 
+ifeq ($(BR2_PACKAGE_NGINX_STREAM_REALIP_MODULE),y)
+NGINX_CONF_OPTS += --with-stream_realip_module
+endif
+
 ifeq ($(BR2_PACKAGE_NGINX_STREAM_SSL_MODULE),y)
 NGINX_DEPENDENCIES += openssl
 NGINX_CONF_OPTS += --with-stream_ssl_module