Merge changes I8514bcc0,I91d20fd3,Iefc324ba,I29676ef7,I5c3d172f

* changes:
  Terminate ARC when eARC gets enabled on the RX device
  Terminate ARC before enabling eARC in the HAL
  Update ARC state based on eARC status updates
  Add callback to startArcAction
  Block new ARC connections during eARC connection