Declare support for Cover Art in our AVRCP Controller SDP record

This change reverts part of a previous commit that removed cover art
support indication from our SDP record.

Some devices can ignore our cover art requests if we don't claim
support.

Tag: #stability
Bug: 323209738
Flag: EXEMPT, no logical update, only reverts a configuration change
Test: m com.android.btservices
Test: manual build an AVRCP Controller device (AAOS Car), connect with
an AVRCP Target device and check the SDP record we send in wireshark. It
should declare support for Cover Art features.

Change-Id: Ifbc8fc05ecaac1228ccc59545ddbec36e2c0ee82