V4L/DVB (7055): make tuner names consistent with standard cases

Change TDA9887 to tda9887.

TDA8290 shall reflect the actual hardware present in its name,
  ie:

tda8295+18271
tda8290+8275a

Signed-off-by: Michael Krufky <mkrufky@linuxtv.org>
Signed-off-by: Mauro Carvalho Chehab <mchehab@infradead.org>