x86/mm: Mark free_initrd_mem() as __init

... matching various other architectures.

Signed-off-by: Jan Beulich <jbeulich@suse.com>
Link: http://lkml.kernel.org/r/4FDF1F5C020000780008A661@nat28.tlf.novell.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>
1 file changed