kernel: bump 4.14 to 4.14.23

This patch bumps the 4.14 kernel to .23.
- Refreshed patches.
- Deleted bcm53xx/patches-4.14/089-PCI-iproc-Fix-NULL-pointer-dereference-for-BCMA.patch. Has been accepted upstream.
- Deleted generic/pending-4.14/821-usb-Remove-annoying-warning-about-bogus-URB.patch. The upstream URB code was changed,
  the patch no longer applies. I discussed this with the patch author and removed it for now, we'll see how it goes.

Compile-tested on: ramips/mt7621, x86/64
Run-tested on: ramips/mt7621, x86/64

Signed-off-by: Stijn Segers <foss@volatilesystems.org>

target/linux/generic/hack-4.14/721-phy_packets.patch

@@ -56,7 +56,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
   */
 --- a/include/linux/skbuff.h
 +++ b/include/linux/skbuff.h
-@@ -2494,6 +2494,10 @@ static inline int pskb_trim(struct sk_bu
+@@ -2491,6 +2491,10 @@ static inline int pskb_trim(struct sk_bu
  	return (len < skb->len) ? __pskb_trim(skb, len) : 0;
  }
  
@@ -67,7 +67,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  /**
   *	pskb_trim_unique - remove end from a paged unique (not cloned) buffer
   *	@skb: buffer to alter
-@@ -2624,16 +2628,6 @@ static inline struct sk_buff *dev_alloc_
+@@ -2621,16 +2625,6 @@ static inline struct sk_buff *dev_alloc_
  }
  
  
@@ -128,7 +128,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  }
 --- a/net/core/skbuff.c
 +++ b/net/core/skbuff.c
-@@ -64,6 +64,7 @@
+@@ -63,6 +63,7 @@
  #include <linux/errqueue.h>
  #include <linux/prefetch.h>
  #include <linux/if_vlan.h>
@@ -136,7 +136,7 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
  
  #include <net/protocol.h>
  #include <net/dst.h>
-@@ -503,6 +504,22 @@ skb_fail:
+@@ -499,6 +500,22 @@ skb_fail:
  }
  EXPORT_SYMBOL(__napi_alloc_skb);