synquacer: fix spi nor flash software reset handling
Created by: masahisak
This commit correctly waits the WIP bit after issuing software reset command to the nor flash device, instead of issuing software reset command repeatedly.
Signed-off-by: Masahisa Kojima masahisa.kojima@linaro.org Change-Id: Ibc98a702ca9abe56a562e6aa4d498cf23bea050a