Remove entity_load* usage for dynamic entity types

Parent Issue

#2359437: [meta] Remove entity_load* family of functions usage from the code base

Problem/Motivation

There are case where dynamically typed entities are retrieved using the functional loader, entity_load*()

Proposed resolution

Replace calls to entity_load*($entity, ...) by using \Drupal::entityTypeManager()->getStorage($entity)->loadByProperties(...)