Optimize CXR31 register initialization on ravb_emac_init_gbeth
function.
Signed-off-by: NBiju Das <biju.das.jz@bp.renesas.com>
Suggested-by: NSergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: NSergey Shtylyov <s.shtylyov@omp.ru>
Signed-off-by: NJakub Kicinski <kuba@kernel.org>