drm/i915: check for more ASLC interrupts

drm/i915: check for more ASLC interrupts

Sometimes I see the "non asle set request??" message on my Haswell
machine, so I decided to get the spec and see if some bits are missing
from the mask. We do have some bits missing from the mask, so this
patch adds them, and the corresponding code to print "unsupported"
messages just like we do with the other bits we don't support.

But I still see the "non asle set request??" message on my machine :(

Also use the proper ASLC name to indicate the registers we're talking
about.

v2: - Properly set the new FAILED bits
    - Rename the old FAILED bits
    - Print everything we don't support

Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>