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/tools/security/ike-scan/default.nix

@@ -0,0 +1,49 @@
+{ lib
+, autoconf
+, automake
+, autoreconfHook
+, fetchFromGitHub
+, fetchpatch
+, openssl
+, stdenv
+}:
+
+stdenv.mkDerivation rec {
+  pname = "ike-scan";
+  version = "1.9.5";
+
+  src = fetchFromGitHub {
+    owner = "royhills";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-mbfg8p3y4aKoXpmLuF9GXAMPEqV5CsvetwGCRDJ9UNY=";
+  };
+
+  nativeBuildInputs = [
+    autoreconfHook
+    openssl
+  ];
+
+  configureFlags = [ "--with-openssl=${openssl.dev}" ];
+
+  patches = [
+    # Using the same patches as for the Fedora RPM
+    (fetchpatch {
+      # Memory leaks, https://github.com/royhills/ike-scan/pull/15
+      url = "https://github.com/royhills/ike-scan/pull/15/commits/d864811de08dcddd65ac9b8d0f2acf5d7ddb9dea.patch";
+      sha256 = "0wbrq89dl8js7cdivd0c45hckmflan33cpgc3qm5s3az6r4mjljm";
+    })
+  ];
+
+  meta = with lib; {
+    description = "Tool to discover, fingerprint and test IPsec VPN servers";
+    longDescription = ''
+      ike-scan is a command-line tool that uses the IKE protocol to discover,
+      fingerprint and test IPsec VPN servers.
+    '';
+    homepage = "https://github.com/royhills/ike-scan";
+    license = with licenses; [ gpl3Plus ];
+    platforms = platforms.linux;
+    maintainers = with maintainers; [ fab ];
+  };
+}