Unify reference to BluetoothProfile.CONNECTION_POLICY

CONNECTION_POLICY{ALLOWED,FORBIDDEN,UNKNOWN} are use widely in java,
there is only one definition in BluetoothProfile.
This change unify all the reference with static import and allow for the
code to be a bit lighter

sed regex runs are:
's/(BluetoothProfile\.CONNECTION_POLICY/(CONNECTION_POLICY/'
's/{BluetoothProfile\.CONNECTION_POLICY/{CONNECTION_POLICY/'
's/ BluetoothProfile\.CONNECTION_POLICY/ CONNECTION_POLICY/'

Bug: 311772251
Test: m .
Flag: Exempt refactor
Change-Id: I82dce6fa279577e3e022efc4a6c9de3bdda8835d