[dgus-display] Screen status should not display RESPOND and M118 messages

[thghca]

It also not react to SET_DISPLAY_TEXT command or renamed M117.

P.S. While experementing with status messages I somehow get screen bootlops few times with "DPM: Error during 'home' menu update: Timeout waiting for write acknowledgement" in log. Can't reproduce yet, but may be some bug in display message code.

P.P.S. Screen crashed again with "DPM: Error during message callback: Invalid value". It happened when idle in minute or two after i did something. Still no idea what exactly caused crash exept status message related.