Bluetooth: Fix channel disconnect when logical link already exists

Fix issue where the attempt to move a second OBEX connection onto an
AMP link fails and the connection is disconnected.

When handling a Move when there is an existing Best Effort Logical Link
L2CAP must check for the WAIT_MOVE_CONFIRM and WAIT_MOVE_RSP_SUCESS
states when the logical link completes. In these scenarios the logical
link completes before the Move Confirm or Move Response Success is
received and L2CAP must continue to wait for the confirm or response.

CRs-fixed: 344557
Change-Id: I3e0786f780fa48592bb45ec2e81ae1ffa4a6ab80
Signed-off-by: Peter Krystad <pkrystad@codeaurora.org>