V4L/DVB (13353): stv090x: fixes STR and SNR calculation and normalizes the...

V4L/DVB (13353): stv090x: fixes STR and SNR calculation and normalizes the value into the 0..0xFFFF range

Signed-off-by: Andreas Regel <andreas.regel@gmx.de>
Signed-off-by: Manu Abraham <manu@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>