Revert "ARM: 7173/1: Add optimised swahb32() byteswap helper for v6 and above"

This reverts commit 01d08d214aa6dfbd3a9d3e3053093671c7bf3780.
Revert "ARM: spinlock: use ticket algorithm for ARMv6+ locking implementation"

This reverts commit e2335655ba10fde879b1e15599302dde9da916ef.
Revert "net: Allow driver to limit number of GSO segments per skb"

This reverts commit 5a16eda44968a36478df93f8a258d0c0e8594d54.
Revert "tcp: Apply device TSO segment limit earlier"

This reverts commit bd7bb001f6df99da165e71307bfec79a1ec7d23c.