phy: ti: dm816x: Fix the error handling path in 'dm816x_usb_phy_probe()

Add an error handling path in the probe to release some resources, as
already done in the remove function.

Fixes: 609adde8 ("phy: Add a driver for dm816x USB PHY")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Link: https://lore.kernel.org/r/ac5136881f6bdec50be19b3bf73b3bc1b15ef1f1.1622898974.git.christophe.jaillet@wanadoo.fr


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