libftdi1: Grant seat sessions access to FTDI devices

Apply uaccess to the udev rules granting seat sessions access to the
devices. Change the rule priority to 60 since they need to be processed
before 73-seat-late.rules. uaccess does not conflict with group/mode
configurations.

Signed-off-by: Felix Singer <felixsinger@posteo.net>

pkgs/by-name/li/libftdi1/package.nix

@@ -74,11 +74,14 @@ stdenv.mkDerivation rec {
   postPatch = ''
     substituteInPlace packages/99-libftdi.rules \
       --replace-fail 'GROUP="plugdev"' 'GROUP="ftdi"'
+
+    substituteInPlace packages/99-libftdi.rules \
+      --replace-fail 'GROUP="ftdi"' 'GROUP="ftdi", TAG+="uaccess"'
   '';
 
   postInstall =
     ''
-      install -Dm644 ../packages/99-libftdi.rules "$out/etc/udev/rules.d/99-libftdi.rules"
+      install -Dm644 ../packages/99-libftdi.rules "$out/etc/udev/rules.d/60-libftdi.rules"
     ''
     + optionalString docSupport ''
       cp -r doc/man "$out/share/"