ltris: needs MMU

This package needs MMU. Hence added dependency on BR2_USE_MMU

Fixes:
http://autobuild.buildroot.net/results/5cf/5cf2262460a72ce51b479a42fca61cea5f6e23fd//

Signed-off-by: Yuvaraj Patil <yuvaraj.patil@wipro.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/ltris/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_LTRIS
 	bool "LTris"
+	depends on BR2_USE_MMU # fork()
 	select BR2_PACKAGE_SDL
 	select BR2_PACKAGE_GETTEXT if BR2_NEEDS_GETTEXT_IF_LOCALE
 	help