linuxPackages.system76: Install hwdb rules

(cherry picked from commit 452fda1d7e)

pkgs/os-specific/linux/system76/default.nix

@@ -25,6 +25,8 @@ stdenv.mkDerivation {
 
   installPhase = ''
     install -D system76.ko $out/lib/modules/${kernel.modDirVersion}/misc/system76.ko
+    mkdir -p $out/lib/udev/hwdb.d
+    mv lib/udev/hwdb.d/* $out/lib/udev/hwdb.d
   '';
 
   meta = with stdenv.lib; {