RTU: fix two warnings

Signed-off-by: Michal Wasiak <michal.wasiak@gmail.com>

userspace/wrsw_rtud/rtu_fd.h

@@ -66,4 +66,7 @@ void rtu_fd_create_vlan_entry(int vid, uint32_t port_mask, uint8_t fid,
 			      uint8_t prio, int has_prio, int prio_override,
 			      int drop);
 
+void rtu_fd_write_mirror_config(int en, uint32_t imask, uint32_t emask,
+			        uint32_t dmask);
+
 #endif /*__WHITERABBIT_RTU_FD_H*/

userspace/wrsw_rtud/rtud_exports.c

@@ -338,7 +338,6 @@ int rtudexp_vlan_entry(const struct minipc_pd *pd, uint32_t * args, void *ret)
 
 int rtudexp_mirror(const struct minipc_pd *pd, uint32_t *args, void *ret)
 {
-	int oper;
 	int enable;
 	uint32_t imask, emask, dmask;
 	int *p_ret = (int *)ret;