ar71xx: add missing patch chunk to 4.1 unaligned access hacks

Signed-off-by: Felix Fietkau <nbd@openwrt.org>

SVN-Revision: 46431

target/linux/ar71xx/patches-4.1/910-unaligned_access_hacks.patch

@@ -876,3 +876,18 @@
  
  	fragment = 0;
  	ptr = ip6hoff + sizeof(struct ipv6hdr);
+--- a/include/net/neighbour.h
++++ b/include/net/neighbour.h
+@@ -262,8 +262,10 @@ static inline bool neigh_key_eq128(const
+ 	const u32 *n32 = (const u32 *)n->primary_key;
+ 	const u32 *p32 = pkey;
+ 
+-	return ((n32[0] ^ p32[0]) | (n32[1] ^ p32[1]) |
+-		(n32[2] ^ p32[2]) | (n32[3] ^ p32[3])) == 0;
++	return ((n32[0] ^ net_hdr_word(&p32[0])) |
++		(n32[1] ^ net_hdr_word(&p32[1])) |
++		(n32[2] ^ net_hdr_word(&p32[2])) |
++		(n32[3] ^ net_hdr_word(&p32[3]))) == 0;
+ }
+ 
+ static inline struct neighbour *___neigh_lookup_noref(