ldd32: place in utilities-lib32 not utilities

The ldd32 binary is currently in the utilities package but belongs in
utilities-lib32. This patch corrects the situation.

PR: 249145
Reviewed by: emaste
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D47023

(cherry picked from commit 53bb5613a8a15363718b6e6de8d965bf9a2c5469)