Correct detect condition is applied to the entire 5221 family of PHYs.
Fixes: 3abbd0699b67 ("net: phy: broadcom: add support for BCM5221 phy")
Signed-off-by: Jim Liu <jim.t90615@xxxxxxxxx>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@xxxxxxxxxxxxxxx>