Update vpphelper to latest (#22)

Signed-off-by: Artem Glazychev <artem.glazychev@xored.com>

go.mod

@@ -7,7 +7,7 @@ require (
 	github.com/edwarnicke/debug v1.0.0
 	github.com/edwarnicke/grpcfd v0.0.0-20210219150442-10fb469a6976
 	github.com/edwarnicke/signalctx v0.0.0-20201105214533-3a35840b3011
-	github.com/edwarnicke/vpphelper v0.0.0-20201229173204-87a3b197f1e1
+	github.com/edwarnicke/vpphelper v0.0.0-20210225052320-b4f1f1aff45d
 	github.com/google/uuid v1.1.2
 	github.com/kelseyhightower/envconfig v1.4.0
 	github.com/networkservicemesh/api v0.0.0-20210218170701-1a72f1cba074

go.sum

@@ -3,6 +3,8 @@ cloud.google.com/go v0.34.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMT
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
 git.fd.io/govpp.git v0.3.6-0.20200903151113-c94a96227985 h1:SCYXEDTNj5MEshXZKh4yPJDHaA9+cu4cSzaF18jTUc8=
 git.fd.io/govpp.git v0.3.6-0.20200903151113-c94a96227985/go.mod h1:pCG9BwUtf+AwnHQWe3/Bk9URmfG0nRoM5DHA794z0/Y=
+git.fd.io/govpp.git v0.3.6-0.20210202134006-4c1cccf48cd1 h1:yNpDKZPsqbDXAuOUSKnJWI22QZp51Zd5fV8NvGvzOtU=
+git.fd.io/govpp.git v0.3.6-0.20210202134006-4c1cccf48cd1/go.mod h1:OCVd4W8SH+666KRQoMj6PM+oipLDZAHhqMz9B1TGbgI=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/BurntSushi/xgb v0.0.0-20160522181843-27f122750802/go.mod h1:IVnqGOEym/WlBOVXweHU+Q+/VP0lqqI8lqeDx9IjBqo=
 github.com/DataDog/datadog-go v2.2.0+incompatible/go.mod h1:LButxg5PwREeZtORoXG3tL4fMGNddJ+vMq1mwgfaqoQ=
@@ -48,8 +50,8 @@ github.com/edwarnicke/serialize v1.0.7 h1:geX8vmyu8Ij2S5fFIXjy9gBDkKxXnrMIzMoDvV
 github.com/edwarnicke/serialize v1.0.7/go.mod h1:y79KgU2P7ALH/4j37uTSIdNavHFNttqN7pzO6Y8B2aw=
 github.com/edwarnicke/signalctx v0.0.0-20201105214533-3a35840b3011 h1:rlA4xj11pzxP9w/qVP11qZkRN+7UfA8MiW6pPljW0CM=
 github.com/edwarnicke/signalctx v0.0.0-20201105214533-3a35840b3011/go.mod h1:Z9/3G9n/oPyXJzsF4ucVh8YOxTlTidDLqOeWlGV1JAw=
-github.com/edwarnicke/vpphelper v0.0.0-20201229173204-87a3b197f1e1 h1:gX3ifHp6qWc8JjvYm2DEwK6tyg52Ik6REE25H5qz/tg=
-github.com/edwarnicke/vpphelper v0.0.0-20201229173204-87a3b197f1e1/go.mod h1:Vs6aWFIO9nTFhl0qsxEprx0iab0l5Swb5f6srxG2rLI=
+github.com/edwarnicke/vpphelper v0.0.0-20210225052320-b4f1f1aff45d h1:Okg1uazbTBFvNTrWP5AbTLgG/xMsnZNIobxJYpyvyK8=
+github.com/edwarnicke/vpphelper v0.0.0-20210225052320-b4f1f1aff45d/go.mod h1:2KXgJqOUUCh9S4Zs2jAycQLqAcRGge3q+GXV2rN55ZQ=
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.1-0.20191026205805-5f8ba28d4473/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=