net: bcmgenet: rename bcmgenet_hw_params->bds_cnt and GENET_DEFAULT_BD_CNT

bcmgenet_hw_params->bds_cnt and GENET_DEFAULT_BD_CNT are used only in Tx init.
Rename them accordingly:
- bcmgenet_hw_params->bds_cnt => bcmgenet_hw_params->tx_bds_per_q
- GENET_DEFAULT_BD_CNT => GENET_Q16_TX_BD_CNT

Signed-off-by: Petri Gynther <pgynther@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/broadcom/genet/bcmgenet.h b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
index b36ddec..3a8a90f 100644
--- a/drivers/net/ethernet/broadcom/genet/bcmgenet.h
+++ b/drivers/net/ethernet/broadcom/genet/bcmgenet.h
@@ -503,8 +503,8 @@
  */
 struct bcmgenet_hw_params {
 	u8		tx_queues;
+	u8		tx_bds_per_q;
 	u8		rx_queues;
-	u8		bds_cnt;
 	u8		bp_in_en_shift;
 	u32		bp_in_mask;
 	u8		hfb_filter_cnt;