staging: mt7621-dts: change some node hex addresses to lower case

Hexadecimal addresses in device tree must be defined using lower case.
There are some of them that are still in upper case. Change them all.

Signed-off-by: Sergio Paracuellos <sergio.paracuellos@gmail.com>
Link: https://lore.kernel.org/r/20211017070656.12654-2-sergio.paracuellos@gmail.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>