driver: net: ti: keystone_net: Change priv member type

Change type of private struct member mdio_base from void * to
phys_addr_t. This allows us to drop 2 casts.

Signed-off-by: Marek BehĂșn <marek.behun@nic.cz>
Reviewed-by: Ramon Fried <rfried.dev@gmail.com>
1 file changed