Rollback and refine compatibility issues for ARC devices

Roll back the commit in onHotplug() due to numerous compatibility issues. Some ARC devices needs to restart initiate flow to output audio.

Additionally, some ARC devices require additional command, <System Audio Mode Request> [Active Source], to output sound.

Bug: 360768278
Flag: EXEMPT bugfix
Change-Id: I785208f206127d859b4f3e5e451562d3a2d5d542