Removed FlushNVDIMM from MPIPL Path

Hwsv is already handling flushNVDIMM call before calling enterMPIPL
There it also checks if flushNVDIMM needs to be skipped basis
ARM'ed status of the NVDIMM.
With this change, SBE is only supporting the chip-op call now.

Change-Id: I44c4bb93c624556c615e9c623c28b282a5ec4de7
Reviewed-on: http://rchgit01.rchland.ibm.com/gerrit1/80131
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Dean Sanner <dsanner@us.ibm.com>
Reviewed-by: RAJA DAS <rajadas2@in.ibm.com>

src/sbefw/app/power/ipl_table.C

@@ -730,15 +730,7 @@ ReturnCode istepWithCoreState( voidfuncptr_t i_hwp)
     ReturnCode l_rc = FAPI2_RC_SUCCESS;
 
     l_rc = stopAllCoreInstructions();
-    if( l_rc == FAPI2_RC_SUCCESS )
-    {
-        l_rc = flushNVDIMM();
-        if( l_rc != FAPI2_RC_SUCCESS )
-        {
-            SBE_ERROR(SBE_FUNC "flushNVDIMM failed");
-        }
-    }
-    else
+    if( l_rc != FAPI2_RC_SUCCESS )
     {
         SBE_ERROR(SBE_FUNC "Stop all core instructions is failed, "
                  "RC=[0x%08X]", l_rc);