dmaengine: loongson2-apb: Change GENMASK to GENMASK_ULL

dmaengine: loongson2-apb: Change GENMASK to GENMASK_ULL

Fix the following smatch static checker warning:

drivers/dma/loongson2-apb-dma.c:189 ls2x_dma_write_cmd()
warn: was expecting a 64 bit value instead of '~(((0)) + (((~((0))) - (((1)) << (0)) + 1) & (~((0)) >> ((8 * 4) - 1 - (4)))))'

The GENMASK macro used "unsigned long", which caused build issues when
using a 32-bit toolchain because it would try to access bits > 31. This
patch switches GENMASK to GENMASK_ULL, which uses "unsigned long long".

Fixes: 71e7d3cb6e55 ("dmaengine: ls2x-apb: New driver for the Loongson LS2X APB DMA controller")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/87cdc025-7246-4548-85ca-3d36fdc2be2d@stanley.mountain/
Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn>
Link: https://lore.kernel.org/r/20241028093413.1145820-1-zhoubinbin@loongson.cn
Signed-off-by: Vinod Koul <vkoul@kernel.org>