dmaengine: Revert "dmaengine: qcom: bam_dma: Avoid writing unavailable register"

This commit causes a hard crash on sdm845 and likely other platforms.
Revert it until a proper fix is found.

This reverts commit 57a7138d: ("dmaengine: qcom: bam_dma: Avoid writing
unavailable register")

Signed-off-by: Caleb Connolly <caleb.connolly@linaro.org>
Fixes: 57a7138d ("dmaengine: qcom: bam_dma: Avoid writing unavailable register")
Tested-by: Neil Armstrong <neil.armstrong@linaro.org> # on sdm845-DB845c
Tested-by: David Heidelberg <david@ixit.cz>
Link: https://lore.kernel.org/r/20250208223112.142567-1-caleb.connolly@linaro.org


Signed-off-by: Vinod Koul <vkoul@kernel.org>