[修改]bug#134984，获取运行时资源信息-swap分区使用率demo显示swap分区使用率为0

src/proc/libkyrtinfo.c

@@ -200,7 +200,7 @@ unsigned long kdk_rti_get_mem_swap_usage_KiB()
 
 float kdk_rti_get_mem_swap_usage_percent()
 {
-    unsigned long percent = 0;
+    float percent = 0;
 #ifdef __linux__
     FILE *fp = fopen(MEMINFO_FILE, "rt");
     if (!fp)