linuxPackages.system76-acpi: Install hwdb rules

(cherry picked from commit 9f43146ec4)

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

@@ -25,6 +25,8 @@ stdenv.mkDerivation {
 
   installPhase = ''
     install -D system76_acpi.ko $out/lib/modules/${kernel.modDirVersion}/misc/system76_acpi.ko
+    mkdir -p $out/lib/udev/hwdb.d
+    mv lib/udev/hwdb.d/* $out/lib/udev/hwdb.d
   '';
 
   meta = with stdenv.lib; {