typo fixes: mecanism -> mechanism

Signed-off-by: Adrian Bunk <bunk@stusta.de>
diff --git a/include/asm-ppc/page.h b/include/asm-ppc/page.h
index 0b19af8..fe95c82 100644
--- a/include/asm-ppc/page.h
+++ b/include/asm-ppc/page.h
@@ -170,7 +170,7 @@
 #define VM_DATA_DEFAULT_FLAGS	(VM_READ | VM_WRITE | VM_EXEC | \
 				 VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC)
 
-/* We do define AT_SYSINFO_EHDR but don't use the gate mecanism */
+/* We do define AT_SYSINFO_EHDR but don't use the gate mechanism */
 #define __HAVE_ARCH_GATE_AREA		1
 
 #include <asm-generic/memory_model.h>