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/tools/build-managers/bazel/bash-tools-test.nix

@@ -0,0 +1,44 @@
+{ writeText, bazel, runLocal, bazelTest, distDir }:
+
+# Tests that certain executables are available in bazel-executed bash shells.
+
+let
+  WORKSPACE = writeText "WORKSPACE" ''
+    workspace(name = "our_workspace")
+  '';
+
+  fileIn = writeText "input.txt" ''
+  one
+  two
+  three
+  '';
+
+  fileBUILD = writeText "BUILD" ''
+    genrule(
+      name = "tool_usage",
+      srcs = [ ":input.txt" ],
+      outs = [ "output.txt" ],
+      cmd = "cat $(location :input.txt) | gzip - | gunzip - | awk '/t/' > $@",
+    )
+  '';
+
+  workspaceDir = runLocal "our_workspace" {} ''
+    mkdir $out
+    cp ${WORKSPACE} $out/WORKSPACE
+    cp ${fileIn} $out/input.txt
+    cp ${fileBUILD} $out/BUILD
+  '';
+
+  testBazel = bazelTest {
+    name = "bazel-test-bash-tools";
+    bazelPkg = bazel;
+    inherit workspaceDir;
+
+    bazelScript = ''
+      ${bazel}/bin/bazel build :tool_usage --distdir=${distDir}
+      cp bazel-bin/output.txt $out
+      echo "Testing content" && [ "$(cat $out | wc -l)" == "2" ] && echo "OK"
+    '';
+  };
+
+in testBazel