ErasureCodeLrc.h: fix UNINIT_CTOR

Fix Coverity issue, preinit with 0:

uninit_member: Non-static class member chunk_count is not initialized
 in this constructor nor in any functions that it calls.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>
mds/Beacon.*: fix UNINIT_CTOR cases

CID 1238905 (#1 of 1): Uninitialized scalar field (UNINIT_CTOR)
 uninit_member: Non-static class member want_state is not initialized
  in this constructor nor in any functions that it calls.
 uninit_member: Non-static class member last_send is not initialized
  in this constructor nor in any functions that it calls.

Signed-off-by: Danny Al-Gaaf <danny.al-gaaf@bisect.de>