ACPI / gpio: do not fall back to parsing _CRS when we get a deferral

If, while locating GPIOs by name, we get probe deferral, we should
immediately report it to caller rather than trying to fall back to parsing
unnamed GPIOs from _CRS block.

Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Acked-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Acked-and-Tested-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>