nginx: Depends on MMU

This package needs MMU. Hence added dependency on BR2_USE_MMU

Fixes:
http://autobuild.buildroot.net/results/224/2240f11fc52e07ff64913844078e2616842a63dc//

[Peter: also add dependency to menuconfig option]
Signed-off-by: Yuvaraj Patil <yuvaraj.patil@wipro.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/nginx/Config.in

@@ -1,9 +1,11 @@
 comment "nginx needs a toolchain w/ largefile"
 	depends on !BR2_LARGEFILE
+	depends on BR2_USE_MMU # fork()
 
 menuconfig BR2_PACKAGE_NGINX
 	bool "nginx"
 	depends on BR2_LARGEFILE
+	depends on BR2_USE_MMU # fork()
 	help
 	  nginx is an HTTP and reverse proxy server, as well as a mail proxy
 	  server.