Default value of CONFIG_SYS_BOOTM_LEN in u-boot causes board reset for
large uImage files, so add u-boot patch to increase the maximum kernel
image size.
Signed-off-by: Shyam Saini <shyam.saini@amarulasolutions.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>