Both the r128 and radeon drivers complain if they don't find an x86 option ROM 
on the device they're talking to.  This would be fine, except that the 
message is incorrect--not all option ROMs are required to be x86 based.  This 
small patch just removes the messages altogether, causing the drivers to 
*silently* fall back to the non-x86 option ROM behavior (it works fine and 
there's no cause for alarm).

Signed-off-by: Jesse Barnes <jbarnes@sgi.com>