Revert "spi: uniphier: fix incorrect property items"

This reverts commit adcb6d9f.

This is a preparation change for merging android-4.19-q.87 into
msm-4.19 branch.

[1] is conflicting against [2] in msm-4.19.

[1] adcb6d9f("spi: uniphier: fix incorrect property items")
[2] 728aba9a("Documentation: devicetree: Remove devicetree bindings from kernel")

Change-Id: Id40d7cee47cd9de2a2ebf02f6cd3910710ae5fe6
Signed-off-by: Ivaylo Georgiev <irgeorgiev@codeaurora.org>