dmaengine: qcom_hidma: use for_each_matching_node() macro

Use for_each_matching_node() macro instead of open coding it.

Signed-off-by: Wei Yongjun <yongjun_wei@trendmicro.com.cn>
Acked-by: Sinan Kaya <okaya@codeaurora.org>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>

drivers/dma/qcom/hidma_mgmt.c

@@ -392,8 +392,7 @@ static int __init hidma_mgmt_init(void)
 #if defined(CONFIG_OF) && defined(CONFIG_OF_IRQ)
 	struct device_node *child;
 
-	for (child = of_find_matching_node(NULL, hidma_mgmt_match); child;
-	     child = of_find_matching_node(child, hidma_mgmt_match)) {
+	for_each_matching_node(child, hidma_mgmt_match) {
 		/* device tree based firmware here */
 		hidma_mgmt_of_populate_channels(child);
 		of_node_put(child);