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/servers/http/tomcat/jdbc/mysql/default.nix

@@ -0,0 +1,21 @@
+{ lib, stdenv, mysql_jdbc }:
+
+stdenv.mkDerivation {
+  pname = "tomcat-mysql-jdbc";
+  version = mysql_jdbc.version;
+
+  dontUnpack = true;
+
+  installPhase = ''
+    runHook preInstall
+
+    mkdir -p $out/lib
+    ln -s $mysql_jdbc/share/java/mysql-connector-java.jar $out/lib/mysql-connector-java.jar
+
+    runHook postInstall
+  '';
+
+  meta = {
+    platforms = lib.platforms.unix;
+  };
+}