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/openal-soft/search-out.patch

@@ -0,0 +1,12 @@
+diff --git a/alc/helpers.cpp b/alc/helpers.cpp
+index 8c1c856..19bbc0f 100644
+--- a/core/helpers.cpp
++++ b/core/helpers.cpp
+@@ -402,6 +402,7 @@ al::vector<std::string> SearchDataFiles(const char *ext, const char *subdir)
+ 
+         DirectorySearch(path.c_str(), ext, &results);
+     }
++    DirectorySearch("@OUT@/share/", ext, &results);
+ 
+     return results;
+ }