RK84 new pid and minor fix

New RK84 pid and a possible fix for the returning to hardware mode on some boards, it looks like moving pause() before the send_report() "fix" the issue, the thing is, its this applicable to all boards revisions?

The possible fix is from this Forum post: https://forum.signalrgb.com/t/royal-kludge-rk84-help/142/7