Some S2/S3 modules don't use the native USB interface but instead have an
external USB-UART. To make the GENERIC_S3/S3 firmware work on these boards
the UART REPL is enabled in addition to the native USB CDC REPL.
Fixes issues #8418 and #8524.
Signed-off-by: Damien George <damien@micropython.org>
Default SPI pins are now correctly assigned by machine_hw_spi.c even for S2
and S3. mpconfigboard.h files define defaults with flipped SPI(1) and
SPI(2) to workaround a bug in machine_hw_spi.c - the bug is fixed.
Signed-off-by: Tomas Vanek <vanekt@fbl.cz>
