kernel: bump 4.9 to 4.9.87

- Refreshed all patches

Compile tested on: ar71xx
Runtime tested on: ar71xx

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

target/linux/generic/hack-4.9/721-phy_packets.patch

@@ -101,7 +101,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  	help
 --- a/net/core/dev.c
 +++ b/net/core/dev.c
-@@ -2943,10 +2943,20 @@ static int xmit_one(struct sk_buff *skb,
+@@ -2950,10 +2950,20 @@ static int xmit_one(struct sk_buff *skb,
  	if (!list_empty(&ptype_all) || !list_empty(&dev->ptype_all))
  		dev_queue_xmit_nit(skb, dev);