kernel: bump 4.19 to 4.19.25

Refreshed all patches.

Compile-tested on: cns3xxx
Runtime-tested on: cns3xxx

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

target/linux/generic/hack-4.19/721-phy_packets.patch

@@ -136,7 +136,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  
  #include <net/protocol.h>
  #include <net/dst.h>
-@@ -499,6 +500,22 @@ skb_fail:
+@@ -503,6 +504,22 @@ skb_fail:
  }
  EXPORT_SYMBOL(__napi_alloc_skb);