Optimization for EDR and LE adapter
Optimization for EDR and LE adapter

In EDR and LE adapter, a request can't be differentiated as unicast or multicast.
Hence when a multicast request was received in EDR or LE adapter,
a error response was sent which could have been ignored.
Especially in Hetrogenous network, we received many responses with payload
NULL for a multicast request.  Hence as an optimization, we are blocking the
error response for EDR and LE adapters.

Change-Id: Ie3766115e8b89e21c760ec8232ebd74d73fc39c0
Signed-off-by: vimala.v <deaf8f2a11dfbe0458573905b6746a84fa37c5f9@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/4029
Tested-by: jenkins-iotivity <09cb29e8a2b473a2c978382eec13ee06fa017bda@opendaylight.org>
Reviewed-by: Abhishek Sharma <88f0e1cd49753fc3688d7153556599606f91d04d@samsung.com>
Reviewed-by: Jon A. Cruz <d4ae605477945a543a3ecda8955c93978db16a84@osg.samsung.com>

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