- fix/dup bootscript, since new u-boot fixed n2_plus to n2-plus variant
- g12b: if n2 and edge, enable new u-boot; include non-SD version as SPI binary; write_uboot_platform_mtd
- Kernel DTS patch to add SPI-flash-enabled DTBs (slower eMMC), produces -spi .dtbs for n2 and n2-plus
- This could also be an overlay, but I dunno overlays.
- SPI+USB3 boot works with "pendrive" storage, untested with cabled/high power USB->SATA or USB->NVMe
Signed-off-by: Ricardo Pardini <ricardo@pardini.net>