uboot: (firmwareOdroidC2/C4) don't invoke patch tool, use patches = [] instead

https://github.com/NixOS/nixpkgs/blob/master/pkgs/stdenv/generic/setup.sh#L948
this can do it nicely.

Signed-off-by: Anton Arapov <anton@deadbeef.mx>

pkgs/applications/networking/cluster/terraform/provider-path.patch

@@ -0,0 +1,16 @@
+diff --git a/command/init.go b/command/init.go
+index 403ca245b..05d98329a 100644
+--- a/command/init.go
++++ b/command/init.go
+@@ -64,6 +64,11 @@ func (c *InitCommand) Run(args []string) int {
+ 		return 1
+ 	}
+ 
++	val, ok := os.LookupEnv("NIX_TERRAFORM_PLUGIN_DIR")
++	if ok {
++		flagPluginPath = append(flagPluginPath, val)
++	}
++
+ 	if len(flagPluginPath) > 0 {
+ 		c.pluginPath = flagPluginPath
+ 		c.getPlugins = false