revendor runc + runtime-spec to match containerd 8e1a04ff9ee3

Note that various fields have changed moved around in the JSON as a result:

* `Platform` has been removed.
* `Process` is now a pointer.
* `OOMScoreAdj` has moved into `Process`, from `Linux.Resources` (resolving a
  TODO here).

Also updates golang.org/x/sys which is less critical.

Signed-off-by: Ian Campbell <ian.campbell@docker.com>

vendor.conf

@@ -12,8 +12,8 @@ github.com/gorilla/mux 4c1c3952b7d9d0a061a3fa7b36fd373ba0398ebc
 github.com/mattn/go-shellwords 02e3cf038dcea8290e44424da473dd12be796a8a
 github.com/Nvveen/Gotty cd527374f1e5bff4938207604a14f2e38a9cf512
 github.com/opencontainers/go-digest a6d0ee40d4207ea02364bd3b9e8e77b9159ba1eb
-github.com/opencontainers/runc 992a5be178a62e026f4069f443c6164912adbf09
-github.com/opencontainers/runtime-spec d094a5c9c1997ab086197b57e9378fabed394d92
+github.com/opencontainers/runc 429a5387123625040bacfbb60d96b1cbd02293ab
+github.com/opencontainers/runtime-spec 198f23f827eea397d4331d7eb048d9d4c7ff7bee
 github.com/pkg/errors ff09b135c25aae272398c51a07235b90a75aa4f0
 github.com/spf13/cobra v1.5.1 https://github.com/dnephin/cobra.git
 github.com/spf13/pflag c990990ab4981d84da820b7b00c85139ca150b5f
@@ -23,7 +23,7 @@ github.com/xeipuuv/gojsonreference e02fc20de94c78484cd5ffb007f8af96be030a45
 github.com/xeipuuv/gojsonschema 702b404897d4364af44dc8dcabc9815947942325
 golang.org/x/crypto 573951cbe80bb6352881271bb276f48749eab6f4
 golang.org/x/net a6577fac2d73be281a500b310739095313165611
-golang.org/x/sys 99f16d856c9836c42d24e7ab64ea72916925fa97
+golang.org/x/sys fb4cac33e3196ff7f507ab9b2d2a44b0142f5b5a
 gopkg.in/yaml.v2 a3f3340b5840cee44f372bddb5880fcbc419b46a
 github.com/Azure/go-ansiterm 388960b655244e76e24c75f48631564eaefade62
 github.com/Microsoft/go-winio v0.4.0