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/development/compilers/swift/patches/0002-build-presets-linux-allow-custom-install-prefix.patch

@@ -0,0 +1,13 @@
+Use custom install prefix.
+
+--- a/utils/build-presets.ini
++++ b/utils/build-presets.ini
+@@ -788,7 +788,7 @@
+ install-swiftpm
+ install-xctest
+ install-libicu
+-install-prefix=/usr
++install-prefix=%(install_prefix)s
+ install-libcxx
+ install-sourcekit-lsp
+ build-swift-static-stdlib