ipq40xx: add snapshot of spi_nand driver

This is a snapshot of the spi_nand as of uboot-1.0
commit:

e6434d80905a219860c8ede78377221ded2510f2 (ipq40xx:
Add bit-flip threshold for QPIC NAND)

Change-Id: I91db5822cc450e9d7eb52fca9eab213784547206
Signed-off-by: Rajkumar Ayyasamy <arajkuma@codeaurora.org>
2 files changed