This commit introduces metrics and improves log outputs for
DRA Device Binding Conditions (KEP-5007):
- scheduler_dra_bindingconditions_allocations_total
Counts the number of per-device scheduling attempts
during PreBind where BindingConditions are in use
- scheduler_dra_bindingconditions_wait_duration_seconds
Observes the time spent waiting for BindingConditions
to be satisfied during PreBind.
Signed-off-by: Tsubasa Watanabe <w.tsubasa@fujitsu.com>