* Fix building issue of Nuvoton porting. 1. Change thread priority of lwip-tcpip and erx. 2. Remove '')' garbage symbols. 3. mm driver issues. Co-authored-by: Wayne Lin <wclin@nuvoton.com>
1. Make up sources and bugfix. 2. Add nu_gpio_pin_get. 3. Add PM operator in USB host driver. 4. Support NUC980 stage 1 and add nk-980iot board.