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Revert Backported i.MX SPI Fixes

Frieder Schrempf requested to merge feature/revert-imx-spi-fixes into v5.10-ktn

This MR reverts the previously backported fixes:

  • spi: imx: fix ERR009165
  • spi: imx: remove ERR009165 workaround on i.mx6ul

On i.MX6S/DL they cause issues like:

spi_imx 200c000.spi: I/O Error in DMA TX
spi-nor spi1.0: SPI transfer failed: -110
spi_master spi1: failed to transfer one message from queue

According to https://www.spinics.net/lists/linux-spi/msg28956.html backporting to stable was abandoned as it is non-trivial or doesn't match stable criteria.

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