nix: Add nrf-command-line-tools derivation

nrf-command-line-tools (nrfjprog) are not available in nixpkgs so this
patch adds a simpe derivation to the repository for easy installation.

utils/nix/.gitignore

@@ -1 +1,2 @@
 *.bin
+result

utils/nix/nrf-command-line-tools/default.nix

@@ -0,0 +1,42 @@
+with import <nixpkgs> {};
+
+stdenv.mkDerivation rec {
+  pname = "nrf-command-line-tools";
+  version = "10.23.4";
+
+  src = fetchurl {
+    url = "https://nsscprodmedia.blob.core.windows.net/prod/software-and-other-downloads/desktop-software/nrf-command-line-tools/sw/versions-10-x-x/10-23-4/nrf-command-line-tools-10.23.4_linux-amd64.tar.gz";
+    hash = "sha256-+kastgV9jfvnpGE48O3FSqC93cCL93W2OCyaHV+96+U=";
+  };
+
+  nativeBuildInputs = [
+    autoPatchelfHook
+  ];
+
+  buildInputs = [
+    pkgs.libusb1
+  ];
+
+  propagatedBuildInputs = [
+    pkgs.segger-jlink
+  ];
+
+  installPhase = ''
+    runHook preInstall
+    install -Dm0755 -D bin/* -t $out/bin
+    install -Dm0644 include/*.h -t $out/include
+    install -Dm0644 lib/*.so -t $out/lib
+    cp -rv share $out/share
+    runHook postInstall
+  '';
+
+  postFixup = ''
+    patchelf $out/bin/* --add-rpath ${pkgs.segger-jlink}/lib
+  '';
+
+  meta = with lib; {
+    homepage = "https://www.nordicsemi.com/Products/Development-tools/nRF-Command-Line-Tools";
+    description = "nRF Command Line Tools";
+    platforms = platforms.linux;
+  };
+}