More than just the u-boot_2025.04.bb includes u-boot-common.inc, such as
u-boot_2023.07.02.bb in meta-arm.
To avoid other recipes having to carry patches that may not affect them,
move the files to be specific to the recipe itself.
(From OE-Core rev: 3bb0f87a1d13f86836dc44adee5621c3146863d3)
Signed-off-by: Ross Burton <ross.burton@arm.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>