papi: fix building on aarch64
papi: fix building on aarch64

Change-Id: I3983576bd4e0f197193a7d281763d545a55e7d64
Signed-off-by: Damjan Marion <9141bba8b2efed526e55cf796d48631af330ad98@cisco.com>

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