RDMA/ocrdma: Fix spelling mistake in variable name

There is a spelling mistake in the variable nak_invalid_requst_errors,
rename it to nak_invalid_request_errors.

Link: https://lore.kernel.org/r/20191107224855.417647-1-colin.king@canonical.com
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Reviewed-by: Jason Gunthorpe <jgg@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

drivers/infiniband/hw/ocrdma/ocrdma_sli.h

@@ -2034,7 +2034,7 @@ struct ocrdma_rx_stats {
 };
 
 struct ocrdma_rx_qp_err_stats {
-	u32 nak_invalid_requst_errors;
+	u32 nak_invalid_request_errors;
 	u32 nak_remote_operation_errors;
 	u32 nak_count_remote_access_errors;
 	u32 local_length_errors;

drivers/infiniband/hw/ocrdma/ocrdma_stats.c

@@ -423,8 +423,8 @@ static char *ocrdma_rxqp_errstats(struct ocrdma_dev *dev)
 	memset(stats, 0, (OCRDMA_MAX_DBGFS_MEM));
 
 	pcur = stats;
-	pcur += ocrdma_add_stat(stats, pcur, "nak_invalid_requst_errors",
-			(u64)rx_qp_err_stats->nak_invalid_requst_errors);
+	pcur += ocrdma_add_stat(stats, pcur, "nak_invalid_request_errors",
+			(u64)rx_qp_err_stats->nak_invalid_request_errors);
 	pcur += ocrdma_add_stat(stats, pcur, "nak_remote_operation_errors",
 			(u64)rx_qp_err_stats->nak_remote_operation_errors);
 	pcur += ocrdma_add_stat(stats, pcur, "nak_count_remote_access_errors",