databases/sqlite3: Pass --prefix to configure

This is required to build with a non-default ${LOCALBASE}, otherwise,
the build fails: firstly because it can't find libedit, and secondly
because it tries to install into /usr/local instead of ${PREFIX}.

PR: 288816
Reviewed by: vvd, arrowd
Approved by: maintainer (timeout, > 30 days)
Differential Revision: https://reviews.freebsd.org/D52632