Makefile: update go-bindata repo/version used for install

The version that's checked into source code uses
kevinburke/go-bindata, recommend it in the Makefile and regenerate
data/data.go using the most recent version.

(There are no code changes, just layout changes).

Author: kevinburkesegment

Makefile

@@ -72,7 +72,7 @@ $(TEST_KUBECONFIG):
 .PHONY: go-bindata
 go-bindata:
 ifeq (, $(shell which go-bindata))
-	GO111MODULE=off go get -u github.com/go-bindata/go-bindata/...
+	GO111MODULE=off go get -u github.com/kevinburke/go-bindata/...
 endif
 
 .PHONY: clean