Add imx6q-sabresd_defconfig which supports imx6q-sabresd board using
mainline U-Boot and mainline kernel.
Keep freescale_imx6qsabresd_defconfig for those who want to run U-Boot and
kernel versions from NXP.
Signed-off-by: Fabio Estevam <festevam@gmail.com>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>
