cmake: fix marvell plugin build
cmake: fix marvell plugin build

Change-Id: I4ff1a6ed4e42381ed68a62362ba05e940b615da2
Signed-off-by: Brian Brooks <8e906ed46ccdc37d68771658f0f8f8740a374927@arm.com>

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