Revert "arm: flush: replace IS_ENABLED"

This reverts commit 0784ee014136425a707bb80d5cd9b376f65a046a.
Revert "ARM: 7772/1: fix missing flush_kernel_dcache_page() for noMMU"

This reverts commit dd216dfcb818853ed2f52a33001ef6533c725a35.
Revert "ARM: 7755/1: handle user space mapped pages in flush_kernel_dcache_page"

This reverts commit 179f832b4d84c7217ed1534db2d08cce29bb799b.
Revert "ARM: don't enable GENERIC_LOCKBREAK with ticket spinlocks"

This reverts commit fccd1ff7f5fecc722882be142475273873cf0ece.
Revert "ARM: 7178/1: fault.c: Port OOM changes into do_page_fault"

This reverts commit d76bd3a0800e367b07578c0bb32c0f6d5d056d70.
Revert "ARM: 7632/1: spinlock: avoid exclusive accesses on unlock() path"

This reverts commit 3e2ed65f40fe028f4f1daf3649d35768911c08c7.
Revert "ARM: 7627/1: Predicate preempt logic on PREEMP_COUNT not PREEMPT alone"

This reverts commit 25874526096d604475d34a2971a87c1e3f7a803d.
Revert "revert: ARM: vfp: Move exception address fixup into vfphw.S"

This reverts commit b2be575ff936eb01100b172db77d25f1160885d7.