const must be marked __initconst, not __initdata.

Link: http://lkml.kernel.org/r/20171222001335.1987-1-andi@firstfloor.orgSigned-off-by: Andi Kleen <ak@linux.intel.com>
Reviewed-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>