[POWERPC] arch/ppc/: Spelling fixes

Signed-off-by: Joe Perches <joe@perches.com>
Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/ppc/syslib/ppc_sys.c b/arch/ppc/syslib/ppc_sys.c
index 2d48018..837183c 100644
--- a/arch/ppc/syslib/ppc_sys.c
+++ b/arch/ppc/syslib/ppc_sys.c
@@ -185,7 +185,7 @@
  */
 
 /*
-   Here we'll replace .name pointers with fixed-lenght strings
+   Here we'll replace .name pointers with fixed-length strings
    Hereby, this should be called *before* any func stuff triggeded.
  */
 void ppc_sys_device_initfunc(void)