ALSA: hda - Fix a wrong array range check in patch_realtek.c

The commit 6a4f2ccb introduced a wrong
comparision for the array range check, which effectively skips the whole
initialization of DAC connections.  Fixed now.

Reference: bko#15689
	https://bugzilla.kernel.org/show_bug.cgi?id=15689



Reported-by: Adrian Ulrich <kernel@blinkenlights.ch>
Signed-off-by: Takashi Iwai <tiwai@suse.de>