u-boot.mk/kernel.mk: update commits for new u-boot/kernel

gen_images: add imx6qp-edm1-fairy-qca to device tree support list

u-boot/kernel: add rtl8211f phy relate patches

gen_image.sh: add imx6dl wandbaord relate dtb files

gen_image: fix resize eMMC rotate screen issue fro edm-g series

Because edm-g-imx8mp/edm-g-imx8mm adapt lvds panel with landscape mode
by default, so no need do rotation, so remove it on compile level when
edm-g series was be choose.

README-imx6: update new limitations for imx6 series