xinetd: needs mmu

Signed-off-by: Axel Lin <axel.lin@ingics.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

package/xinetd/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_XINETD
 	bool "xinetd"
+	depends on BR2_USE_MMU # fork()
 	help
 	  xinetd is a secure replacement for inetd. It was originally written by
 	  panos@cs.colorado.edu.