V4L/DVB (4099): Cx88-dvb: clean up long linewraps

This patch splits up dvb_pll_attach and isl6421_attach function calls
such that the lines do not exceed 80 columns. This patch is purely cosmetic,
with no functional change at all.

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