This adds support for the Q10 BlackBerry based keyboard
from Solder Party. https://www.solder.party/docs/keyboard-pmod/
They keyboard device registered at /dev/kbdN is fully compatible
with hidkbd and has been testing with the Keyboard FeatherWing
on the nRF52 platform.
The buttons are added as a standard discrete joystick if
optionally enabled. The PMOD variant of this does not
include these buttons, but the Keyboard FeatherWing does.
This joystick is usually defined at /dev/djoyN and
can be used with the djoy example application.
Signed-off-by: Brennan Ashton <bashton@brennanashton.com>
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