linuxPackages.rtl8821cu: 2021-10-21 -> 2022-03-08

Like with other morrownr modules, the 8821cu repo now links to
the 8821cu-20210118 repository as the place to get the driver code.  I
kept the homepage as 8821cu though, because in future if a new version
of the driver is created, that's where the link will be posted.

Fixes the build with Linux 5.17.

pkgs/os-specific/linux/rtl8821cu/default.nix

@@ -2,13 +2,13 @@
 
 stdenv.mkDerivation rec {
   pname = "rtl8821cu";
-  version = "${kernel.version}-unstable-2021-10-21";
+  version = "${kernel.version}-unstable-2022-03-08";
 
   src = fetchFromGitHub {
     owner = "morrownr";
-    repo = "8821cu";
-    rev = "4e2d84c5e70245f850877f355e8bf293f252f61c";
-    sha256 = "1j32psvfgzfs5b1pdff6xk76iz7j8scakji6zm3vgqb2ssbxx1k1";
+    repo = "8821cu-20210118";
+    rev = "4bdd7c8668562e43564cd5d786055633e591ad4d";
+    sha256 = "sha256-dfvDpjsra/nHwIGywOkZICTEP/Ex7ooH4zzkXqAaDkI=";
   };
 
   hardeningDisable = [ "pic" ];