Fix issue in nat Bisearch algorithm (VPP-980)
Fix issue in nat Bisearch algorithm (VPP-980)

Change-Id: I39b1d1ec6fb9a10e2a0e67d36b01c0bf2522d07f
Signed-off-by: flyingeagle23 <4e6d007bdb0a091c64b73285859226e62f2cbe24@zte.com.cn>

chrisy/vpp,chrisy/vpp,vpp-dev/vpp,chrisy/vpp,chrisy/vpp,vpp-dev/vpp,vpp-dev/vpp,vpp-dev/vpp,FDio/vpp,FDio/vpp,FDio/vpp,chrisy/vpp,FDio/vpp,chrisy/vpp,chrisy/vpp,FDio/vpp,FDio/vpp,vpp-dev/vpp,FDio/vpp,chrisy/vpp,vpp-dev/vpp,FDio/vpp,vpp-dev/vpp