Floss: Don't disconnect unbonded HID when disconnected or disconnecting

Don't disconnect the incoming HID connection from an unbonded device
when the state is disconnected or disconnecting, otherwise we will disconnect it twice.

Bug: 374242303
Tag: #floss
Test: mmm packages/modules/Bluetooth
Flag: EXEMPT, Floss-only changes
Change-Id: Id2c6cab895e1ed9fea6d7f2e4cfdde224572ce3f