trinity: needs MMU support

Fixes:
  http://autobuild.buildroot.net/results/2fc/2fca707deb6fda2da83ab817f8e594f76415d997/

Cc: Vicente Olivert Riera <Vincent.Riera@imgtec.com>
Signed-off-by: Rahul Bedarkar <rahul.bedarkar@imgtec.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

package/trinity/Config.in

@@ -1,5 +1,6 @@
 config BR2_PACKAGE_TRINITY
 	bool "trinity"
+	depends on BR2_USE_MMU # fork()
 	depends on BR2_aarch64 || BR2_arm || BR2_armeb || BR2_i386 || \
 		BR2_mips || BR2_mipsel || BR2_powerpc || BR2_powerpc64 || \
 		BR2_powerpc64le || BR2_sparc || BR2_x86_64