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/misc/tellico/hex.patch

@@ -0,0 +1,15 @@
+index 7ea81c7..0c19767 100644
+--- a/src/utils/iso5426converter.cpp
++++ b/src/utils/iso5426converter.cpp
+@@ -1211,7 +1211,11 @@ QChar Iso5426Converter::getCombiningChar(uint c) {
+     return 0x1EF1; // SMALL LETTER U WITH HORN AND DOT BELOW
+ 
+   default:
++#if (QT_VERSION < QT_VERSION_CHECK(5, 14, 0))
++    myDebug() << "no match for" << hex << c;
++#else
+     myDebug() << "no match for" << Qt::hex << c;
++#endif
+     return QChar();
+   }
+ }