Add flag com.android.bluetooth.flag.btsec_avdt_msg_ind_type_confusion

Bug: 358212054
Bug: 315241296
Flag: com.android.bluetooth.flags.btsec_avdt_msg_ind_type_confusion
Test: m libbluetooth
Ignore-AOSP-First: security
Tag: #security

Change-Id: Ie01375e604ba07f015fabb26f4c247a1766aa170