arm64: zynqmp: Aligned QSPI configuration with latest spec

Official DT binding description for dual stacked/paralllel configurations
have been merged that's why switch to it.

Link: https://lore.kernel.org/r/20220126112608.955728-3-miquel.raynal@bootlin.com
Signed-off-by: Michal Simek <michal.simek@amd.com>
Link: https://lore.kernel.org/r/2912091c231f5e945ee44601c285fe16263448da.1695378830.git.michal.simek@amd.com
6 files changed