devm_kzalloc needs to pass udevice for first parameter, this phy driver
wrongly pass the priv in phy_device. And because the dev in phy_device
is only valid after phy_connect, in probe phase this dev is NULL, so
we can't use devm_kzalloc, replace it with kzalloc.
Signed-off-by: Ye Li <ye.li@nxp.com>
Reviewed-by: Peng Fan <peng.fan@nxp.com>