1. Nuvoton:
 - Export toolchain of the camera   
 - Copy Makefile in platform/nuvoton to mqtt folder (Current Makefile in mqtt folder of nuvoton )
 - Keep original build in Nuvoton (make clean;make;make install)
 2. CamSDK 
 - Keep original build in CamSDK
 3. Hubblization
 - Export toolchain of the camera  
 - Run command ./build_mqtts_app.sh hubblesdk