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/science/electronics/flatcam/release.patch

@@ -0,0 +1,13 @@
+diff --git a/FlatCAMVersion.py b/FlatCAMVersion.py
+index ba9e04a5..2c64d5a6 100644
+--- a/FlatCAMVersion.py
++++ b/FlatCAMVersion.py
+@@ -16,7 +16,7 @@ version = {
+     "number": 8.5,
+     "date": (2016, 7, 1),  # Year, Month, Day
+     "name": None,
+-    "release": False,
++    "release": True,
+ }
+ 
+