Change REPRESENTATION payload in correct format.

Change REPRESENTATION payload in correct format.

Updated rep without starting array, href, and removed prop strucutre.
[
   {
     "href":"/BinarySwitchResURI",
     "rt":
     "if":
     "rep":
           {
              "value":true
           }
   }
]
to be
{
    "rt":
    "if":
    "value":true
}

Change-Id: I26fd608999c88323ab1b9fae1e06a270756e9d31
Signed-off-by: Habib Virji <habib.virji@samsung.com>
Reviewed-on: https://gerrit.iotivity.org/gerrit/4327
Tested-by: jenkins-iotivity <jenkins-iotivity@opendaylight.org>
Reviewed-by: Jon A. Cruz <jonc@osg.samsung.com>