phy: cadence-torrent: Use devm_platform_ioremap_resource() to get reg addresses

Use devm_platform_ioremap_resource() to get register addresses instead of
boilerplate code.

Signed-off-by: Swapnil Jakhade <sjakhade@cadence.com>
Link: https://lore.kernel.org/r/1600280911-9214-3-git-send-email-sjakhade@cadence.com


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