platform/x86: x86-android-tablets: Don't return -EPROBE_DEFER from a non probe() function

The x86-android-tablets code all runs from module_init, so returning
-EPROBE_DEFER is not appropriate. Instead log an error and bail.

This path should never get hit since PINCTRL_BAYTRAIL is a bool.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20211229231431.437982-5-hdegoede@redhat.com