Add disconnect_reason_for_encryption_failure flag to fix encryption failed issues

Change-Id: Icfd20ab213306ce8e3aab6eb5357245bdf467d64
Test: mmm packages/modules/Bluetooth
Flag: com.android.bluetooth.flags.disconnect_reason_for_encryption_failure
Ignore-AOSP-First: Internal Only
Bug: 391764832
Bug: 315241296