spi: pxa2xx: Reset DMA bits in CR1 in reset_sccr1()

In order to allow reset_sccr1() to be reused in DMA paths,
reset DMA bits in CR1 in this function.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20210719074842.36060-2-andriy.shevchenko@linux.intel.com


Signed-off-by: Mark Brown <broonie@kernel.org>