Add missing Makefile that got lost while rebasing commit 655ceff1
"[media] gscaler: Add Makefile for G-Scaler Driver" onto latest source tree.
Signed-off-by: NSylwester Nawrocki <sylvester.nawrocki@gmail.com>
Signed-off-by: NMauro Carvalho Chehab <mchehab@redhat.com>