x86: signal: unify signal_{32|64}.c

Impact: cleanup

Unify signal_{32|64}.c! Mechanic unification - the two
files are the same.

Signed-off-by: Hiroshi Shimamoto <h-shimamoto@ct.jp.nec.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
3 files changed