In order to enable the Amlogic SM1 MMC controller fix, we need to add a u-boot specific
MMC controller compatible.
This adds a new meson-sm1-u-boot.dtsi and reworks the other -u-boot.dtsi
to use this for SM1 based boards.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>
Rename meson-g12a-u-boot.dtsi into meson-g12-common-u-boot.dtsi to
match the new DT architecture and add meson-sm1-sei610-u-boot.dtsi
to handle the U-Boot specific DT for graphics.
Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>