Drop cm_lock before calling mapper_close, which in turn could call _citrus_mapper_close again and result in a deadlock otherwise.
Drop cm_lock before calling mapper_close, which in turn could call
_citrus_mapper_close again and result in a deadlock otherwise.

This is similar to NetBSD PR/24023 (fixed in their r1.5 of this file).

PR:		bin/182994
Submitted by:	Fabian Keil <fk fabiankeil de>
MFC after:	3 days


git-svn-id: f5a6d8d4789ccaa4de615b16a9f56c65bd0d6974@256833 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f

osakared/citrus-iconv