linux-phytec-fsl

spi: spi-fsl-dspi: remove clk reference when regmap_mmio initialize

It is unnecessary for DSPI to enable/disable clk when access DSPI register.
And it will reduce efficiency.

Signed-off-by: Haikun Wang <haikun.wang@freescale.com>
Signed-off-by: Mark Brown <broonie@kernel.org>