x86: signal.c declare do_notify_resume before they get used

Impact: cleanup

In asm/signal.h moved out do_notify_resume from __i386__ as it is common
for both 32 and 64 bit.

Signed-off-by: Jaswinder Singh <jaswinder@infradead.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

 arch/x86/include/asm/signal.h |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)