systemtap: Patches for version 2.1

Signed-off-by: Mikhail Durnev <Mikhail_Durnev@mentor.com>
systemtap: Linux 3.8 syscalls update

Signed-off-by: Mikhail Durnev <Mikhail_Durnev@mentor.com>
Merge pull request #7 from mdurnev/mdurnev/systemtap21

Mdurnev/systemtap21