ASACORE-1199 Fix LostAdvertisedName for TCP

ASACORE-1199 Fix LostAdvertisedName for TCP when max untrusted
             clients is set to zero.

Back up only the transport that is being disabled to avoid
overwriting ports corresponding to other transports.

Change-Id: I557aae762efd0c6ca5e28aea599d93b777069163
Signed-off-by: Sheshambika Venkateshwaran <sheshamb@qce.qualcomm.com>
Merge "ASACORE-1199 Fix LostAdvertisedName for TCP" into RB14.12