[media] rtl28xxu: silence error log about disabled rtl2832_sdr module
[media] rtl28xxu: silence error log about disabled rtl2832_sdr module

It printed a little bit too heavy looking error log "DVB: Unable to
find symbol rtl2832_sdr_attach()" when staging module was disabled.
Silence that error by introducing own version of dvb_attach() macro
without the error logging.

Signed-off-by: Antti Palosaari <293134fe763ce2d9d8609280ea107c73cbd2eb86@iki.fi>
Signed-off-by: Mauro Carvalho Chehab <0cae1d1e981e84d16b82ca3d17be8a7f826608d3@samsung.com>

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