pinctrl: armada-37xx: Convert to use dev_err_probe()

pinctrl: armada-37xx: Convert to use dev_err_probe()

BugLink: https://bugs.launchpad.net/bugs/1988479
[ Upstream commit 06cb10ea0cd5c5f4db9627a33ab47fec32cb5960 ]

It's fine to call dev_err_probe() in ->probe() when error code is known.
Convert the driver to use dev_err_probe().

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Gregory CLEMENT <gregory.clement@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Signed-off-by: Kamal Mostafa <kamal@canonical.com>
Signed-off-by: Stefan Bader <stefan.bader@canonical.com>