realtek: Use short name for "unsigned long int"

realtek: Use short name for "unsigned long int"

It is preferred in the Linux kernel to use the short type name
"unsigned long" instead of "unsigned long int". The same is true
for short and the signed version of the types.

Signed-off-by: Sven Eckelmann <[email protected]>
Link: https://github.com/openwrt/openwrt/pull/20906
Signed-off-by: Hauke Mehrtens <[email protected]>