Test environment: i.MX8ULP EVK, SDK2.16
Some customer want to use LPUART2 in DSP domain on M33 core. This patch is based on lpuart_edma example.
Hardware test point:
You will get such log from LPUART2 if we enter 3 on keyboard
LPUART EDMA example
Send back received data
Echo every 8 characters
33333333
Modify M33 debug console from LPUART1 to LPUART2 is similiar.
