greylag: Add framework tweaks and firmware support

Change-Id: I5932f5b413b9b599c6556a3e01878d8daed3f320
Reviewed-on: https://git.clicks.codes/c/Chimera/NixFiles/+/436
Tested-by: Skyler Grey <minion@clicks.codes>
Reviewed-by: Skyler Grey <minion@clicks.codes>
diff --git a/systems/x86_64-linux/greylag/firmware/default.nix b/systems/x86_64-linux/greylag/firmware/default.nix
new file mode 100644
index 0000000..40ae097
--- /dev/null
+++ b/systems/x86_64-linux/greylag/firmware/default.nix
@@ -0,0 +1,5 @@
+{ config, lib, pkgs, ... }:
+
+{
+  services.fwupd.enable = true;
+}