few kms tests - incomplete/dmesg-warn/dmesg-fail - *ERROR* DSB 0 timed out waiting for idle

https://intel-gfx-ci.01.org/tree/intel-xe/xe-560-ca0510637dca8ce9658a2797626a2a558025ec3c/re-adlp-pub4/igt@kms_color@ctm-max@pipe-a.html

<7> [312.058080] xe 0000:00:02.0: [drm:xe_vm_dbg_print_entries [xe]] 1: Update level 0 at (0 + 489) [600000...7e9000) f:0

<3> [312.074680] xe 0000:00:02.0: [drm] ERROR [CRTC:80:pipe A] DSB 0 timed out waiting for idle (current head=0x680, head=0x0, tail=0x880)

<7> [312.074695] xe 0000:00:02.0: [drm:intel_dsb_wait [xe]] [CRTC:80:pipe A] DSB 0 commands {