Correct whitespace and coding style issues in the s390 asm/ptrace.h
uapi header file.  This is preparatory work to copy it to the tools/
directory for inclusion by selftests and perf.
Signed-off-by: NHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: NDaniel Borkmann <daniel@iogearbox.net>