Dynamic Partitions: fix bug related to maps having many extents

Dynamic Partitions: fix bug related to maps having many extents

A dynamic partition can consist of more than one extent. In such
a case, parse-dynparts with --list-tables option would output one
line per partition and partitions having many extents would have
those extents separated with \n string. Such a line would be later
echoed to dmsetup. Echo without -e does not break lines so the
output directed to dmsetup would be incorrect. This patch fixes
this problem.

Change-Id: Ib1a75bbd6341f79d03f0793b5d9d5b3b4b40e4d4