imx6: override default inittab to add video console tty

Adds the following to the default inittab
tty1::askfirst:/bin/ash --login

Signed-off-by: Tim Harvey <tharvey@gateworks.com>

target/linux/imx6/base-files/etc/inittab

@@ -0,0 +1,4 @@
+::sysinit:/etc/init.d/rcS S boot
+::shutdown:/etc/init.d/rcS K shutdown
+::askconsole:/bin/ash --login
+tty1::askfirst:/bin/ash --login