kms_frontbuffer_tracking: fix sink CRC detection regression

Don't forget to mark the CRC as not supported if there are no eDP
panels.

Regression introduced by:

    commit 8aa7ea4f84b0e1384b78f4cc9b136ea5b641055a
    Author: Paulo Zanoni <paulo.r.zanoni@intel.com>
        kms_frontbuffer_tracking: refactor sink CRC reliability handling

v2 (from Paulo):
 - Convert Petri's email patch to an actual git patch
 - Add an extra assertion, just in case
 - Add Petri's s-o-b tag (authorized via IRC)

Signed-off-by: Petri Latvala <petri.latvala@intel.com>
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
1 file changed