packaging: Adjust following the relocation of the ringtones.

This is a follow up to the f0fb8148ba7f453d73e31e1cece2dcffae68e878
commit (Use the PROGSHAREDIR macro to refer to the custom datadir) in
the daemon, that moved the ringtones from a hard-coded location of
/usr/share/ring/ringtones to $datadir/jami/ringtones.

* packaging/rules/rpm/jami-daemon.spec (%files): Adjust accordingly.
* scripts/install.sh (client_cmake_flags) <DRINGTONE_DIR>: Likewise.

Change-Id: Ia9d3403f5600a4ab4eefe28ee20611afc3f5e8b0