Maintain consistency of entity instance variable

In order to maintain the consistency of variable names
across PDR structures, change the entity_instance_num
of pldm_pdr_fru_record_set to entity_instance in
accordance to the changes done in libpldm -
https://gerrit.openbmc.org/c/openbmc/libpldm/+/65146/7
https://gerrit.openbmc.org/c/openbmc/libpldm/+/65150/6

Signed-off-by: Sagar Srinivas <sagar.srinivas@ibm.com>
Change-Id: Icbd340495957d90c5c43273d1f3f0eae2de83697
diff --git a/host-bmc/host_pdr_handler.cpp b/host-bmc/host_pdr_handler.cpp
index 2e30582..a9a914b 100644
--- a/host-bmc/host_pdr_handler.cpp
+++ b/host-bmc/host_pdr_handler.cpp
@@ -986,7 +986,8 @@
             const_cast<uint8_t*>(pdr.data()) + sizeof(pldm_pdr_hdr));
 
         if (fruPdr->entity_type == entity.entity_type &&
-            fruPdr->entity_instance_num == entity.entity_instance_num)
+            fruPdr->entity_instance == entity.entity_instance_num &&
+            fruPdr->container_id == entity.entity_container_id)
         {
             return fruPdr->fru_rsi;
         }