Re-work MPSoC handler module

linux/payload/PlocSupvUartMan.cpp

@@ -437,6 +437,8 @@ ReturnValue_t PlocSupvUartManager::writeUpdatePackets() {
         // Useful to allow restarting the update
         triggerEvent(SUPV_UPDATE_PROGRESS, buildProgParams1(progPercent, update.sequenceCount),
                      update.bytesWritten);
+        sif::info << "PLOC SUPV update progress " << (int)progPercent << " % at "
+                  << update.bytesWritten << " bytes" << std::endl;
       }
     }
     supv::WriteMemory packet(spParams);