ecryptfs: disable openssl module to fix build

This seems to have been important, as it was a channel blocker until recently [1].
The particular failure [2] was weird in the sense incorrect/incomplete C headers were pulled in.
Disabling the openssl module seems to fix the build.
OpenSSL was not listed as any sort of dependency, so it probably was not used anyways.

[1] https://github.com/NixOS/nixpkgs/pull/392175
[2] https://hydra.nixos.org/build/292468814/log

pkgs/tools/security/ecryptfs/default.nix

@@ -56,7 +56,7 @@ stdenv.mkDerivation rec {
     done
   '';
 
-  configureFlags = lib.optionals (!enablePython) [ "--disable-pywrap" ];
+  configureFlags = [ " --disable-openssl" ] ++ lib.optionals (!enablePython) [ "--disable-pywrap" ];
 
   nativeBuildInputs =
     [