V4L/DVB (10226): zoran: Get rid of extra module ref count

V4L/DVB (10226): zoran: Get rid of extra module ref count

The zoran driver does a module_get/put of THIS_MODULE on device open/close.
This isn't necessary as the kernel does this automatically.

Clean up the failure path of zoran_open() somewhat.

Make the dprintk()s on open/close a higher debug level and make the user
count printed take the current open/close into account.

Signed-off-by: Trent Piepho <[email protected]>
Acked-by: Jean Delvare <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>