chcr: Fix non static symbol warning

Fixes the following sparse warning:

drivers/crypto/chelsio/chcr_algo.c:593:5: warning:
 symbol 'cxgb4_is_crypto_q_full' was not declared. Should it be static?

Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/crypto/chelsio/chcr_algo.c

@@ -590,7 +590,7 @@ badkey_err:
 	return -EINVAL;
 }
 
-int cxgb4_is_crypto_q_full(struct net_device *dev, unsigned int idx)
+static int cxgb4_is_crypto_q_full(struct net_device *dev, unsigned int idx)
 {
 	int ret = 0;
 	struct sge_ofld_txq *q;