Revert "Remove dialer sounds and vibrations settings fragments and redirect to...

Revert "Remove dialer sounds and vibrations settings fragments and redirect to the system sound settings fragment instead."

We add additional settings to this fragment, so the stated reasons for
removing it don't apply to us.

This reverts commit c378fb17.

Change-Id: I0a8bd3135c43627d4355cc5c01c1144a03518144