linux: 4.4.247 -> 4.4.248

pkgs/os-specific/linux/kernel/linux-4.4.nix

···
 { stdenv, buildPackages, fetchurl, perl, buildLinux, ... } @ args:
 
 buildLinux (args // rec {
-  version = "4.4.247";
+  version = "4.4.248";
   extraMeta.branch = "4.4";
 
   src = fetchurl {
     url = "mirror://kernel/linux/kernel/v4.x/linux-${version}.tar.xz";
-    sha256 = "1jh7vmyx55krk6y2r9v48liifs5wwkgns3gp8rs5sm4klfm36r2a";
+    sha256 = "1z1xbkm0z0v6k3scszii5hi24pn391332g0li93p3n1rnv74jap5";
   };
 } // (args.argsOverride or {}))