This commit enables HAVE_FEATURE_NSS for Android and fixes the svl/ vcl/
and xmlsecurity/ module to use NSS.

xmlsecurity/ wasn't built for Android previously, this commit enables
building xmlsecurity/ for Android and disables the support of gpgme
in the same module(Only for Android).

It also enables the linking of NSS shared libraries with
liblo-native-code.so and adds a rule to package them along with the apk.

Change-Id: I7d0341688ac979ae92e9145c37dd107670417fe1
Reviewed-on: https://gerrit.libreoffice.org/41308Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Miklos Vajna <vmiklos@collabora.co.uk>