Fix in LE adapter to return CA_STATUS_OK when BT is not enabled

Fix in LE adapter to return CA_STATUS_OK when BT is not enabled

LE Adapter returns error when BT is not enabled.  This patch returns
CA_STATUS_OK and when BT is enabled, with the notification of device state
change callback, LE server/client is started.

Change-Id: Ic6c717535547f76d37b55f49e23b0efe25f77dff
Signed-off-by: vimala.v <vimala.v@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/8119
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jon A. Cruz <jon@joncruz.org>