hwdata: remove restriction to platforms.linux

hwdata is just a collection of (plain-text) databases and hence makes
sense on any platform. The impetus for this commit was #112644, where we
wanted to change pciutils so that it uses the database from hwdata. At
this time, pciutils was marked as platforms.unix but hwdata only as
platforms.linux.

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

@@ -24,7 +24,7 @@ stdenv.mkDerivation rec {
   meta = {
     homepage = "https://github.com/vcrhonek/hwdata";
     description = "Hardware Database, including Monitors, pci.ids, usb.ids, and video cards";
-    license = lib.licenses.gpl2;
-    platforms = lib.platforms.linux;
+    license = lib.licenses.gpl2Plus;
+    platforms = lib.platforms.all;
   };
 }