[media] rc: Add support for GPIO based IR Receiver driver

Adds GPIO based IR Receiver driver. It decodes signals using decoders
available in rc framework.

Change-Id: Ifc4cbb6d5a507aeb9671fb0d559b97b1a95ea09c
Signed-off-by: Ravi Kumar V <kumarrav@codeaurora.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>