Add the board/riscv/nommu directory to add a Linux kernel patch used
for all RISC-V NOMMU builds (QEMU and Canaan Kendryte K210 SoC based
boards). The patch is upstream and will be part of the upcoming 5.19
release.
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
