Disable absolute volume for AirPods 2 with MAC address from 9C:64:8B

Volume of AirPods 2 would be set to maximum when users start to play
audio. Previously we fixed this bug for AirPods 2 with MAC address from
94:16:25(b/129602489). This CL will fix those whose MAC address is from
9C:64:8B.

Bug: 137752614
Test: Played music and videos with AirPods 2
Change-Id: Ic5027e07fc8fade6ce56908a3bcc51e42ffb8d0b