perf events, x86: Mark constrant tables read mostly

Various constraint tables were not marked read-mostly.

Acked-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Acked-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Link: http://lkml.kernel.org/n/tip-wpqwwvmhxucy5e718wnamjiv@git.kernel.org


Signed-off-by: Ingo Molnar <mingo@elte.hu>