phy: zynqmp: Simplify code by using dev_err_probe()

Use already prepared dev_err_probe() introduced by commit a787e540
("driver core: add device probe log helper").
It simplifies EPROBE_DEFER handling.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Link: https://lore.kernel.org/r/0df30548f721b10475a6cc5659beda102fec3c87.1612444300.git.michal.simek@xilinx.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>