platform/x86: x86-android-tablets: Add Advantech MICA-071 extra button

platform/x86: x86-android-tablets: Add Advantech MICA-071 extra button

[ Upstream commit b03ae77e7e057f4b3b858f10c840557e71448a91 ]

The Advantech MICA-071 is a standard Windows tablet, but it has an extra
"quick launch" button which is not described in the ACPI tables in anyway.

Use the x86-android-tablets infra to create a gpio-button device for this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20221127221928.123660-1-hdegoede@redhat.com
Signed-off-by: Sasha Levin <sashal@kernel.org>