Fix eARC log description

Logs for eARC status always shows true. eg. eARC state change [old:true new true]
The reason why is because the original design is integer but it use %b (boolean) for it.

Bug: 280546652
Test: atest
Change-Id: I81cee5b42ae9ff240fcb2647f3545aa692ee8656
(cherry picked from commit fc8090e7)