Reorganize the setEventReceiver code

This commit is to re-organise the code to make the
setEventReceiver optional when GetTID gets called.

Currently, it is being called on every GetTID command.
This is and OEM behaviour, which was implemented at -
https://gerrit.openbmc.org/c/openbmc/pldm/+/41779/36

Also, setEventReceiver is a command defined in the platform
Spec, so rightfully placing it under the platform handler.

Signed-off-by: Sagar Srinivas <sagar.srinivas@ibm.com>
Change-Id: Ib60e9d46a8eaf4806c5ec2e9575f4e219bc80eab
diff --git a/oem/ibm/libpldmresponder/oem_ibm_handler.cpp b/oem/ibm/libpldmresponder/oem_ibm_handler.cpp
index 98903a4..d75f092 100644
--- a/oem/ibm/libpldmresponder/oem_ibm_handler.cpp
+++ b/oem/ibm/libpldmresponder/oem_ibm_handler.cpp
@@ -612,6 +612,11 @@
            record_handle <= HOST_PDR_END_RANGE;
 }
 
+void Handler::processSetEventReceiver()
+{
+    this->setEventReceiver();
+}
+
 } // namespace oem_ibm_platform
 } // namespace responder
 } // namespace pldm