x86: move per-cpu mmu_gathers to mm/init.c

[ Impact: cleanup ]

Signed-off-by: Pekka Enberg <penberg@cs.helsinki.fi>
LKML-Reference: <1240923650.1982.22.camel@penberg-laptop>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
3 files changed