vde2: needs mmu

Signed-off-by: Gustavo Zacarias <gustavo@zacarias.com.ar>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>

package/vde2/Config.in

@@ -1,8 +1,9 @@
 config BR2_PACKAGE_VDE2
 	bool "vde2"
+	depends on BR2_USE_MMU # fork()
 	help
 	  VDE is an ethernet compliant virtual network that can be
 	  spawned over a set of physical computers over the Internet.
 	  VDE is part of the virtualsquare project.
-	  
+
 	  http://vde.sourceforge.net/