kernel: Update kernel 4.14 to version 4.14.187

Fixes:
- CVE-2020-10757

The "mtd: rawnand: Pass a nand_chip object to nand_release()" commit was
backported which needed some adaptations to other code.

Build tested: ramips

Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>

target/linux/generic/hack-4.14/721-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
-@@ -3004,10 +3004,20 @@ static int xmit_one(struct sk_buff *skb,
+@@ -3000,10 +3000,20 @@ static int xmit_one(struct sk_buff *skb,
  	if (!list_empty(&ptype_all) || !list_empty(&dev->ptype_all))
  		dev_queue_xmit_nit(skb, dev);