dmaengine: zynqmp_dma: enable COMPILE_TEST

The driver doesn't use anything architecture specific. Allow the
compilation on other architectures as well.

Signed-off-by: Michael Tretter <m.tretter@pengutronix.de>
Link: https://lore.kernel.org/r/20210826094742.1302009-4-m.tretter@pengutronix.de


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