drivers: dma: max32: check if bit other than status is set

we iterate over all the channels, and if more than one channel is
active at a time. interrupt on any one of active channel was
triggering callback for other active channel, because flags value
is 1 (enabled). this is commit handle this behaviour and only
trigger callback if bits other than status is set

Signed-off-by: Anuj Pathak <anuj@croxel.com>

Author: cx-anuj-pathak

drivers/dma/dma_max32.c

@@ -258,6 +258,11 @@ static void max32_dma_isr(const struct device *dev)
 			continue;
 		}
 
+		/* check if only enabled bit is set (interrupt is not there) and skip it */
+		if (flags == ADI_MAX32_DMA_STATUS_ST) {
+			continue;
+		}
+
 		/* Check for error interrupts */
 		if (flags & (ADI_MAX32_DMA_STATUS_BUS_ERR | ADI_MAX32_DMA_STATUS_TO_IF)) {
 			status = -EIO;