[POWERPC] Correct #endif comment

Fix up comment on two #endifs to match their #ifs.

Signed-off-by: Jon Tollefson <kniht@linux.vnet.ibm.com>
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 hash_utils_64.c |    4 ++--
 1 files changed, 2 insertions(+), 2 deletions(-)
Signed-off-by: Paul Mackerras <paulus@samba.org>