gpio: graniterapids: Determine if GPIO pad can be used by driver

Add check of HOSTSW_MODE bit to determine if GPIO pad can be used by the
driver.

Cc: stable@vger.kernel.org
Signed-off-by: Alan Borzeszkowski <alan.borzeszkowski@linux.intel.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20241204070415.1034449-6-mika.westerberg@linux.intel.com


Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>