Patch to fix i915 drm with vgapci changes

[John Baldwin]

This patch uses an identify routine in the agp driver to add the agp child to 
vgapci instead of having vgapci guess based on the PCIY_AGP capability.  
Patch is at http://www.FreeBSD.org/~jhb/patches/agp_vgapci.patch

-- 
John Baldwin <jhb at FreeBSD.org>  <><  http://www.FreeBSD.org/~jhb/
"Power Users Use the Power to Serve"  =  http://www.FreeBSD.org