ALSA: hda - Fix up autocfg output pin numbers in realtek parser

When quirks are applied, the numbers of output pins in autocfg aren't
set up properly but only pin arrays are changed.  Let's fix it up so that
the rest of the parser can use autocfg.line_outs & co safely.

Signed-off-by: Takashi Iwai <tiwai@suse.de>