skeleton: Use ioctl gpio handling

Now that chassiskill is a standalone app and is
using ioctl gpio handling (through the gpioplus library),
the gpio libraries here need to use ioctl as well for
chassiskill to be compatible.

Tested: Verified chassiskill works as intended and checked
that nothing else broke.

Change-Id: I67c431027d31e87c332c3e1771fc2d3423f56652
Signed-off-by: Anthony Wilson <wilsonan@us.ibm.com>
3 files changed