dmaengine: mmp: Fix again Wvoid-pointer-to-enum-cast warning

dmaengine: mmp: Fix again Wvoid-pointer-to-enum-cast warning

This was fixed and re-introduced.  'type' is an enum, thus cast of
pointer on 64-bit compile test with W=1 causes:

  mmp_tdma.c:644:9: error: cast to smaller integer type 'enum mmp_tdma_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]

Fixes: a67ba97dfb30 ("dmaengine: Use device_get_match_data()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20250525-dma-fixes-v1-5-89d06dac9bcb@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>