[POWERPC] Make smp_call_function_map static

smp_call_function_map should be static, and for consistency prepend it
with __ like other local helper functions in the same file.

Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Paul Mackerras <paulus@samba.org>
1 file changed