[media] via-camera: replace current_norm by g_std
[media] via-camera: replace current_norm by g_std

The current_norm field is deprecated. Replace it by properly implementing
g_std.

Signed-off-by: Hans Verkuil <3a513708f73c27e7d36ebc496aa41dad6a3153ea@cisco.com>
Cc: Jonathan Corbet <b2ce64d5587c02f12e367eac59751145a0660c51@lwn.net>
Signed-off-by: Mauro Carvalho Chehab <ad86ba2154032c9f55743a190faa2459a9d61d42@redhat.com>

KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs,KristFoundation/Programs