media: v4l2: convert v4l2_format compat ioctls

Now that the 'clips' array is accessed by common code in the native
ioctl handler, the same can be done for the compat version, greatly
simplifying the compat code for these four ioctl commands.

[hverkuil: fix: CHECK: Alignment should match open parenthesis]
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>