[202111][db_migrator] Add migration of FLEX_COUNTER_DELAY_STATUS during 1911->2111 upgrade + fast-reboot. Add UT.#2869
Closed
vadymhlushko-mlnx wants to merge 2 commits intosonic-net:202111from vadymhlushko-mlnx:202111-flex-counter-delay-status-migration
+107-3