* add boot item support to radeon hd driver
* add edid storage to shared info
* add pull of active monitor VESA EDID to radeon hd driver (until AtomBios complete)
* EDID pulled in driver now passed to create_display_modes
* move registers to external stock xorg radeon hd register headers (lic. allows it)
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@41411 a95241bf-73f2-0310-859d-f6bbb57e9c96