LU-3097 build: fix 'missing break' errors

LU-3097 build: fix 'missing break' errors

Fix 'missing break' issues found by Coverity version 6.5.1:
Missing break in switch (MISSING_BREAK)
This case is not terminated by a 'break' statement.

Signed-off-by: Sebastien Buisson <sebastien.buisson@bull.net>
Change-Id: Ib96784433db5075bb6fb916024c1c217850f7eb6
Reviewed-on: http://review.whamcloud.com/7164
Reviewed-by: John L. Hammond <john.hammond@intel.com>
Reviewed-by: James Nunez <james.a.nunez@intel.com>
Tested-by: Hudson
Tested-by: Maloo <whamcloud.maloo@gmail.com>
Reviewed-by: Dmitry Eremin <dmitry.eremin@intel.com>
Reviewed-by: Oleg Drokin <oleg.drokin@intel.com>