drivers/ieee802154: Adapt cc1200 driver to new GPIO API

Update to use new API for GPIO pin configuration and operation.  Fix
invalid arithmetic on void pointer.  Convert to support devicetree.

Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
4 files changed