V4L/DVB (7004): cx23885: Ensure HVR1800 TDA8295A is reset fully on module load

Failure to do this means that a full system reboot is required if the
part hangs.

Signed-off-by: Steven Toth <stoth@hauppauge.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>