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/libraries/appstream/installed-tests-path.patch

@@ -0,0 +1,27 @@
+diff --git a/meson_options.txt b/meson_options.txt
+index 8dd8e0c7..e2a30b06 100644
+--- a/meson_options.txt
++++ b/meson_options.txt
+@@ -44,6 +44,11 @@ option('install-docs',
+        value : true,
+        description : 'Install documentation for API and specification'
+ )
++option('installed_test_prefix',
++       type : 'string',
++       value : '',
++       description : 'Prefix for installed tests'
++)
+ 
+ #
+ # For development
+diff --git a/tests/installed-tests/meson.build b/tests/installed-tests/meson.build
+index 405820ce..f592a753 100644
+--- a/tests/installed-tests/meson.build
++++ b/tests/installed-tests/meson.build
+@@ -10,5 +10,5 @@ configure_file(
+     output : 'metainfo-validate.test',
+     configuration : itconf,
+     install: true,
+-    install_dir: join_paths('share', 'installed-tests', 'appstream'),
++    install_dir: join_paths(get_option('installed_test_prefix'), 'share', 'installed-tests', 'appstream'),
+ )