common: fdt_support: print hexadecimal numbers in debug

common: fdt_support: print hexadecimal numbers in debug

We usually deal with hexadecimal addresses and sizes in
device-tree. Its much easier if debug logs print hexadecimal
values too.

Reviewed-by: Simon Glass <[email protected]>
Signed-off-by: Sekhar Nori <[email protected]>
Reviewed-by: Lokesh Vutla <[email protected]>
Reviewed-by: Tom Rini <[email protected]>