linux-imx

Merge remote-tracking branch 'origin/spi/lpspi' into spi/next

* origin/spi/lpspi:
  MLK-21520-3 spi: lpspi: remove fsl_lpspi->chipselect
  MLK-21520-2 spi: lpspi: add multi SS support in PIO mode
  MLK-21520-1 spi: lpspi: add NULL check when probe device