RDMA/nes: Fix showing wqm_quanta

In nes_show_wqm_quanta(), the wrong value is printed.  Fix this.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
diff --git a/drivers/infiniband/hw/nes/nes.c b/drivers/infiniband/hw/nes/nes.c
index 969a01c..d53480e 100644
--- a/drivers/infiniband/hw/nes/nes.c
+++ b/drivers/infiniband/hw/nes/nes.c
@@ -1099,7 +1099,7 @@
 		i++;
 	}
 
-	return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta);
+	return  snprintf(buf, PAGE_SIZE, "0x%X\n", wqm_quanta_value);
 }