Pull ARC Fixes from Vineet Gupta:
- Handle unaligned access in zero delay loops
- spinlock livelock fix for SMP systemC model
- fix 32bit overflow in access_ok
- better setup of clockevents
* tag 'arc-fixes-for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/vgupta/arc:
ARC: Use clockevents_config_and_register over clockevents_register_device
ARC: Workaround spinlock livelock in SMP SystemC simulation
ARC: Fix 32-bit wrap around in access_ok()
ARC: Handle zero-overhead-loop in unaligned access handler