kernel: bump 4.9 to 4.9.124

Refreshed all patches.

Compile-tested on: ar71xx
Runtime-tested on: ar71xx

Signed-off-by: Koen Vandeputte <koen.vandeputte@ncentric.com>

target/linux/generic/backport-4.9/024-8-tcp-tsq-move-tsq_flags-close-to-sk_wmem_alloc.patch

@@ -134,7 +134,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  		if (tcp_small_queue_check(sk, skb, 0))
  			break;
  
-@@ -3546,8 +3546,6 @@ void __tcp_send_ack(struct sock *sk, u32
+@@ -3542,8 +3542,6 @@ void __tcp_send_ack(struct sock *sk, u32
  	/* We do not want pure acks influencing TCP Small Queues or fq/pacing
  	 * too much.
  	 * SKB_TRUESIZE(max(1 .. 66, MAX_TCP_HEADER)) is unfortunately ~784

target/linux/generic/backport-4.9/090-net-generalize-napi_complete_done.patch

@@ -388,7 +388,7 @@ Signed-off-by: David S. Miller <davem@davemloft.net>
  					BNX2_PCICFG_INT_ACK_CMD_INDEX_VALID |
 --- a/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
 +++ b/drivers/net/ethernet/broadcom/bnx2x/bnx2x_cmn.c
-@@ -3230,7 +3230,7 @@ static int bnx2x_poll(struct napi_struct
+@@ -3236,7 +3236,7 @@ static int bnx2x_poll(struct napi_struct
  		 * has been updated when NAPI was scheduled.
  		 */
  		if (IS_FCOE_FP(fp)) {