powerpc: Fix typo in pgtable-ppc64.h

Fix a minor comment typo in pgtable-ppc64.h.
Signed-off-by: NGeoff Levand <geoffrey.levand@am.sony.com>
Signed-off-by: NPaul Mackerras <paulus@samba.org>

arch/powerpc/include/asm/pgtable-ppc64.h

@@ -100,7 +100,7 @@
 
 #define _PAGE_WRENABLE	(_PAGE_RW | _PAGE_DIRTY)
 
-/* __pgprot defined in arch/powerpc/incliude/asm/page.h */
+/* __pgprot defined in arch/powerpc/include/asm/page.h */
 #define PAGE_NONE	__pgprot(_PAGE_PRESENT | _PAGE_ACCESSED)
 
 #define PAGE_SHARED	__pgprot(_PAGE_BASE | _PAGE_RW | _PAGE_USER)