Update vendored tool go install location to use GOPATH

hack/lib/util.sh

@@ -435,7 +435,7 @@ kube::util::ensure_godep_version() {
   fi
 
   kube::log::status "Installing godep version ${GODEP_VERSION}"
-  go install ./vendor/github.com/tools/godep/
+  go install k8s.io/kubernetes/vendor/github.com/tools/godep/
   if ! which godep >/dev/null 2>&1; then
     kube::log::error "Can't find godep - is your GOPATH 'bin' in your PATH?"
     kube::log::error "  GOPATH: ${GOPATH}"

hack/verify-spelling.sh

@@ -25,7 +25,7 @@ export GOBIN="${KUBE_OUTPUT_BINPATH}"
 PATH="${GOBIN}:${PATH}"
 
 # Install tools we need, but only from vendor/...
-go install ./vendor/github.com/client9/misspell/cmd/misspell
+go install k8s.io/kubernetes/vendor/github.com/client9/misspell/cmd/misspell
 
 # Spell checking
 # All the skipping files are defined in hack/.spelling_failures