drm.c: Fix bad crtc lookup
drm.c: Fix bad crtc lookup

Earnestly/wlc,ammen99/wlc,yohanesu75/wlc,ss1h2a3tw/wlc,SirCmpwn/wlc,Cloudef/wlc,vially/wlc,ammen99/wlc,vially/wlc,Enerccio/ewlc,gpyh/wlc,Enerccio/ewlc,scarabeusiv/wlc,scarabeusiv/wlc,Cloudef/wlc,lkundrak/wlc,lkundrak/wlc,Earnestly/wlc,SirCmpwn/wlc,yohanesu75/wlc,UIKit0/wlc,gpyh/wlc,ss1h2a3tw/wlc,UIKit0/wlc