fix warning: function declaration isn't a prototype

Signed-off-by: Nzhumingxian <zhumingxian@ohos.com.cn>

services/param/include/param_persist.h

@@ -34,7 +34,7 @@ typedef struct {
 } PersistAdpContext;
 
 typedef struct {
-    int (*load)();
+    int (*load)(void);
     int (*save)(const char *name, const char *value);
     int (*batchSaveBegin)(PERSIST_SAVE_HANDLE *handle);
     int (*batchSave)(PERSIST_SAVE_HANDLE handle, const char *name, const char *value);

services/param/include/param_security.h

@@ -98,12 +98,12 @@ typedef int (*RegisterSecurityOpsPtr)(ParamSecurityOps *ops, int isInit);
 typedef int (*SelinuxSetParamCheck)(const char *paraName, struct ucred *uc);
 typedef struct SelinuxSpace_ {
     void *selinuxHandle;
-    void (*setSelinuxLogCallback)();
+    void (*setSelinuxLogCallback)(void);
     int (*setParamCheck)(const char *paraName, struct ucred *uc);
     const char *(*getParamLabel)(const char *paraName);
-    void (*initParamSelinux)();
+    void (*initParamSelinux)(void);
     int (*readParamCheck)(const char *paraName);
-    ParamContextsList *(*getParamList)();
+    ParamContextsList *(*getParamList)(void);
     void (*destroyParamList)(ParamContextsList **list);
 } SelinuxSpace;
 #ifdef PARAM_SUPPORT_SELINUX