RDKTV-21873: getVolumeLevel for ARC0 port

Reason for change: Added support in thunder code for ACR0
Test Procedure: Refer JIRA.
Risks: Low
Priority: P1

Signed-off-by: apatel859 <amit_patel5@comcast.com>
Change-Id: I18ce3678facd3394db7b2e1ef9ae582929a97425
1 file changed