T4827: Route-map state continue must be with action permit only

route-map action 'deny' cannot be used for "continue"
as FRR does not validate it

r14(config)# route-map FOO permit 100
r14(config-route-map)# route-map FOO deny 50
r14(config-route-map)# on-match goto 100
% Configuration failed.

Error type: validation
r14(config-route-map)#