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/tools/cd-dvd/dvdisaster/encryption.patch

@@ -0,0 +1,19 @@
+Author: n/a
+Description: Disables to skip on encrypted disks (e.g. DVD with CSS-Encryption).
+
+diff -Naur dvdisaster-0.79.5.orig/scsi-layer.c dvdisaster-0.79.5/scsi-layer.c
+--- dvdisaster-0.79.5.orig/scsi-layer.c	2015-10-28 21:56:57.000000000 +0100
++++ dvdisaster-0.79.5/scsi-layer.c	2015-12-27 06:19:32.012253661 +0100
+@@ -2712,12 +2712,6 @@
+       }
+    }
+ 
+-   if(dh->mainType == DVD && query_copyright(dh))
+-   {  CloseImage(image);
+-      Stop(_("This software does not support encrypted media.\n"));
+-      return NULL;
+-   }
+-
+    /* Create the bitmap of simulated defects */
+ 
+    if(Closure->simulateDefects)