* [bsp/nuvoton] Support NuMaker-M467HJ BSP and update drivers.

* Format files.
Co-authored-by: NWayne Lin <wclin@nuvoton.com>

2. Fix spi/qspi/uspi TX/RX PDMA trigger issue.
3. Drain RX FIFO to remove remain FEF frames in FIFO.
4. Implement RT_DEVICE_CTRL_CLOSE in uart/uuart/scuart driver.