Update MDadm from 3.1.2 -> 3.3

Additionally, remove the old udev patch since this version has a rule
for enabling mdraid arrays

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

@@ -1,16 +1,13 @@
 { stdenv, fetchurl, groff }:
 
 stdenv.mkDerivation rec {
-  name = "mdadm-3.1.2";
+  name = "mdadm-3.3";
 
   src = fetchurl {
     url = "mirror://kernel/linux/utils/raid/mdadm/${name}.tar.bz2";
-    sha256 = "0s2d2a01j8cizxqvbgd0sn5bpa1j46q8976078b3jq1q7i1ir0zz";
+    sha256 = "0igdqflihiq1dp5qlypzw0xfl44f4n3bckl7r2x2wfgkplcfa1ww";
   };
 
-  # Enable incremental activation of swraid arrays from udev.
-  patches = [ ./udev.patch ];
-
   nativeBuildInputs = [ groff ];
 
   preConfigure = "sed -e 's@/lib/udev@\${out}/lib/udev@' -e 's@ -Werror @ @' -i Makefile";
@@ -19,7 +16,7 @@ stdenv.mkDerivation rec {
   # /dev/.mdadm/map as a fallback).
   preBuild =
     ''
-      makeFlagsArray=(INSTALL=install BINDIR=$out/sbin MANDIR=$out/share/man VAR_RUN=/var/run/mdadm ALT_RUN=/dev/.mdadm)
+      makeFlagsArray=(INSTALL=install BINDIR=$out/sbin MANDIR=$out/share/man RUN_DIR=/dev/.mdadm)
       if [[ -n "$crossConfig" ]]; then
         makeFlagsArray+=(CROSS_COMPILE=$crossConfig-)
       fi