imx6: drop 4.3 support Signed-off-by: Luka Perkov <luka@openwrt.org> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48299 3c298f89-4303-0410-b956-a3cf2f4a3e73
imx6: Add 4.3 support Build and boot tested on the following hardware: * GW54xx * GW53xx * GW52xx * GW51xx * GW552x * GW551x Signed-off-by: Pushpal Sidhu <psidhu@gateworks.com> git-svn-id: svn://svn.openwrt.org/openwrt/trunk@48008 3c298f89-4303-0410-b956-a3cf2f4a3e73