[][openwrt][mt7988][tops][fix coverity issue]

[Description]
Fix TOPS coverity issue

[Release-log]
N/A

Change-Id: Ic4a5aaf30e66e7985ef3d13e7448a626ee8ba124
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7922988
diff --git a/package-21.02/kernel/tops/src/mcu.c b/package-21.02/kernel/tops/src/mcu.c
index 94f465c..30cb032 100644
--- a/package-21.02/kernel/tops/src/mcu.c
+++ b/package-21.02/kernel/tops/src/mcu.c
@@ -1387,7 +1387,7 @@
 		return -ENOMEM;
 
 	npu.pd_links = devm_kmalloc_array(dev, npu.pd_num,
-					  sizeof(struct device_link),
+					  sizeof(*npu.pd_links),
 					  GFP_KERNEL);
 	if (!npu.pd_links)
 		return -ENOMEM;