5045 use atomic_{inc,dec}_* instead of atomic_add_*

@@ -375,11 +375,11 @@
 void rdsv3_ib_dma_unmap_sg(ib_device_t *dev, struct rdsv3_scatterlist *scat,
     uint_t num);
 static inline void
 rdsv3_sk_sock_hold(struct rsock *sk)
 {
-        atomic_add_32(&sk->sk_refcount, 1);
+        atomic_inc_32(&sk->sk_refcount);
 }
 static inline void
 rdsv3_sk_sock_put(struct rsock *sk)
 {
         if (atomic_dec_and_test(&sk->sk_refcount))