dmaengine: mxs-dma: Remove the unused .id_table

[ Upstream commit cc2afb0d ]

The mxs-dma driver is only used by DT platforms and the .id_table
is unused.

Get rid of it to simplify the code.

Signed-off-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20201123193051.17285-1-festevam@gmail.com


Signed-off-by: Vinod Koul <vkoul@kernel.org>
Stable-dep-of: 26696d46 ("dmaengine: mxs: use platform_driver_register")
Signed-off-by: Sasha Levin <sashal@kernel.org>