Adding new IAllocator mode to constants

Signed-off-by: René Nussbaumer <rn@google.com>
Reviewed-by: Iustin Pop <iustin@google.com>

lib/constants.py

@@ -1531,11 +1531,13 @@ IALLOCATOR_MODE_ALLOC = "allocate"
 IALLOCATOR_MODE_RELOC = "relocate"
 IALLOCATOR_MODE_CHG_GROUP = "change-group"
 IALLOCATOR_MODE_NODE_EVAC = "node-evacuate"
+IALLOCATOR_MODE_MULTI_ALLOC = "multi-allocate"
 VALID_IALLOCATOR_MODES = frozenset([
   IALLOCATOR_MODE_ALLOC,
   IALLOCATOR_MODE_RELOC,
   IALLOCATOR_MODE_CHG_GROUP,
   IALLOCATOR_MODE_NODE_EVAC,
+  IALLOCATOR_MODE_MULTI_ALLOC,
   ])
 IALLOCATOR_SEARCH_PATH = _autoconf.IALLOCATOR_SEARCH_PATH