[IA64] spelling fixes: arch/ia64/

Spelling and apostrophe fixes in arch/ia64/.

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Signed-off-by: Tony Luck <tony.luck@intel.com>
diff --git a/arch/ia64/kernel/unwind.c b/arch/ia64/kernel/unwind.c
index fe14262..7d3dd6c 100644
--- a/arch/ia64/kernel/unwind.c
+++ b/arch/ia64/kernel/unwind.c
@@ -2,7 +2,7 @@
  * Copyright (C) 1999-2004 Hewlett-Packard Co
  *	David Mosberger-Tang <davidm@hpl.hp.com>
  * Copyright (C) 2003 Fenghua Yu <fenghua.yu@intel.com>
- * 	- Change pt_regs_off() to make it less dependant on pt_regs structure.
+ * 	- Change pt_regs_off() to make it less dependent on pt_regs structure.
  */
 /*
  * This file implements call frame unwind support for the Linux