spi: clps711xx: remove redundant white-space

Remove redundant white-space, no functional change.
Signed-off-by: Junhao He <hejunhao2@hisilicon.com>
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Link: https://lore.kernel.org/r/1612436886-42839-1-git-send-email-yangyicong@hisilicon.comSigned-off-by: Mark Brown <broonie@kernel.org>