ARM: Factor out common code from cpu_proc_fin()

All implementations of cpu_proc_fin() start by disabling interrupts
and then flush caches.  Rather than have every processors proc_fin()
implementation do this, move it out into generic code - and move the
cache flush past setup_mm_for_reboot() (so it can benefit from having
caches still enabled.)

This allows cpu_proc_fin() to become independent of the L1/L2 cache
types, and eventually move the L2 cache flushing into the L2 support
code.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

diff --cc arch/arm/kernel/machine_kexec.c
Simple merge

diff --cc arch/arm/kernel/process.c
Simple merge

diff --cc arch/arm/mm/proc-arm1020.S
Simple merge

diff --cc arch/arm/mm/proc-arm1020e.S
Simple merge

diff --cc arch/arm/mm/proc-arm1022.S
Simple merge

diff --cc arch/arm/mm/proc-arm1026.S
Simple merge

diff --cc arch/arm/mm/proc-arm6_7.S
Simple merge

diff --cc arch/arm/mm/proc-arm720.S
Simple merge

diff --cc arch/arm/mm/proc-arm740.S
Simple merge

diff --cc arch/arm/mm/proc-arm7tdmi.S
Simple merge

diff --cc arch/arm/mm/proc-arm920.S
Simple merge

diff --cc arch/arm/mm/proc-arm922.S
Simple merge

diff --cc arch/arm/mm/proc-arm925.S
Simple merge

diff --cc arch/arm/mm/proc-arm926.S
Simple merge

diff --cc arch/arm/mm/proc-arm940.S
Simple merge

diff --cc arch/arm/mm/proc-arm946.S
Simple merge

diff --cc arch/arm/mm/proc-arm9tdmi.S
Simple merge

diff --cc arch/arm/mm/proc-fa526.S
Simple merge

diff --cc arch/arm/mm/proc-feroceon.S
Simple merge

diff --cc arch/arm/mm/proc-mohawk.S
Simple merge

diff --cc arch/arm/mm/proc-sa110.S
Simple merge

diff --cc arch/arm/mm/proc-sa1100.S
Simple merge

diff --cc arch/arm/mm/proc-v6.S
Simple merge

diff --cc arch/arm/mm/proc-v7.S
Simple merge

diff --cc arch/arm/mm/proc-xsc3.S
Simple merge

diff --cc arch/arm/mm/proc-xscale.S
Simple merge