ion: add compat_ioctl

Add a compat_ioctl to the ion driver

Signed-off-by: Rom Lemarchand <romlem@google.com>
[jstultz: modified patch to apply to staging directory]
Signed-off-by: John Stultz <john.stultz@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/android/ion/Makefile
Simple merge

diff --cc drivers/staging/android/ion/compat_ion.c
Simple merge

diff --cc drivers/staging/android/ion/compat_ion.h
Simple merge

diff --cc drivers/staging/android/ion/ion.c
Simple merge