misc/brs: Rename to bible-kjv

ports r525523 updated brs to use the DEBIAN upstream 'bible-kjv', the
successor to the now unmaintained brs.

This commit renames brs to bible-kjv accordingly.

PR: 243886
Submitted by: Andrew <andrew tao11.riddles.org.uk>
Approved by: <user unknown nu> (implicit, approves maintainer change)