pinctrl: armada-37xx: Use temporary variable for struct device

pinctrl: armada-37xx: Use temporary variable for struct device

BugLink: https://bugs.launchpad.net/bugs/1988479
[ Upstream commit 50cf2ed284e49028a885aa56c3ea50714c635879 ]

Use temporary variable for struct device to make code neater.

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>