fw/drivers/dma: add dma driver for sf32lb #1923

Job	Run time
changes-qemu-sdkshell	3s
build-qemu-sdkshell (qemu_gabbro)	5m 0s
build-qemu-sdkshell (qemu_emery)	4m 48s
build-qemu-sdkshell (qemu_flint)	2m 47s
build-qemu-sdkshell-status	3s
	12m 41s

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