Fixes bit flips in NAND flash (ECC)
Fixes SDRAM initialisation for Stamp9G20 and PortuxG20 128 MB

Stamp9G20 and PortuxG20:
stamp9g20-nandflashboot-uboot-3.4-64mb.bin (9.26 KB)
stamp9g20-nandflashboot-uboot-3.4-128mb.bin (9.26 KB)

Stamp9G45:
stamp9g45-nandflashboot-linux-3.4-128mb.bin (9.88 KB)
stamp9g45-nandflashboot-linux-3.4-256mb.bin (9.88 KB)
stamp9g45-nandflashboot-linux-3.4-512mb.bin (9.89 KB)