[PATCH] powerpc: Fix __power64__ typos that should be __powerpc64__

Fix __power64__ typo that should be __powerpc64__ instead.
Signed-off-by: Jon Loeliger <jdl@freescale.com>
Signed-off-by: Kumar Gala <kumar.gala@freescale.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>

include/asm-powerpc/shmbuf.h

@@ -21,19 +21,19 @@
 
 struct shmid64_ds {
 	struct ipc64_perm	shm_perm;	/* operation perms */
-#ifndef __power64__
+#ifndef __powerpc64__
 	unsigned long		__unused1;
 #endif
 	__kernel_time_t		shm_atime;	/* last attach time */
-#ifndef __power64__
+#ifndef __powerpc64__
 	unsigned long		__unused2;
 #endif
 	__kernel_time_t		shm_dtime;	/* last detach time */
-#ifndef __power64__
+#ifndef __powerpc64__
 	unsigned long		__unused3;
 #endif
 	__kernel_time_t		shm_ctime;	/* last change time */
-#ifndef __power64__
+#ifndef __powerpc64__
 	unsigned long		__unused4;
 #endif
 	size_t			shm_segsz;	/* size of segment (bytes) */