RDS: make rhashtable_params const

Make this const as it is either used during a copy operation or passed
to a const argument of the function rhltable_init
Signed-off-by: NBhumika Goyal <bhumirks@gmail.com>
Acked-by: NSantosh Shilimkar <santosh.shilimkar@oracle.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>

net/rds/bind.c

@@ -40,7 +40,7 @@
 
 static struct rhashtable bind_hash_table;
 
-static struct rhashtable_params ht_parms = {
+static const struct rhashtable_params ht_parms = {
 	.nelem_hint = 768,
 	.key_len = sizeof(u64),
 	.key_offset = offsetof(struct rds_sock, rs_bound_key),