zephyr: test: userspace: intel_hda_dma: add check for DMA channel

Add test check that correct channel is retrieved with
sof_dma_request_channel().

Signed-off-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>

Author: kv2019i

zephyr/test/userspace/test_intel_hda_dma.c

@@ -62,6 +62,7 @@ static void intel_hda_dma_user(void *p1, void *p2, void *p3)
 	LOG_INF("configure DMA channel");
 
 	channel = sof_dma_request_channel(dma, TEST_CHANNEL);
+	zassert_equal(channel, TEST_CHANNEL);
 	LOG_INF("sof_dma_request_channel: ret %d", channel);
 
 	err = sof_dma_get_attribute(dma, DMA_ATTR_BUFFER_ADDRESS_ALIGNMENT,