drm/i915: Fix LVDS presence check

drm/i915: Fix LVDS presence check

Combined patches from 2.6.33 for fixing LVDS detection.
7cf4f69d3f4511f443473954456cb91d5514756d
    drm/i915: Don't set up the LVDS if it isn't in the BIOS device table.
38b3037ee47fbd65a36bc7c39f60a900fbbe3b8e
    drm/i915: Fix LVDS presence check
6e36595a2131e7ed5ee2674be54b2713ba7f0490
    drm/i915: Declare the new VBT parsing functions as static
11ba159288f1bfc1a475c994e598f5fe423fde9d
    drm/i915: Don't check for lid presence when detecting LVDS

Acked-by: Takashi Iwai <tiwai@suse.de>
Cc: Matthew Garrett <mjg@redhat.com>
Cc: Adam Jackson <ajax@redhat.com>
Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>