Fix comment typos in hw/armv7m.c

Fix a couple of typos in comments.

Signed-off-by: Matthew Fernandez <matthew.fernandez@gmail.com>
Acked-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
diff --git a/hw/armv7m.c b/hw/armv7m.c
index 72d010a..83f3393 100644
--- a/hw/armv7m.c
+++ b/hw/armv7m.c
@@ -4,7 +4,7 @@
  * Copyright (c) 2006-2007 CodeSourcery.
  * Written by Paul Brook
  *
- * This code is licenced under the GPL.
+ * This code is licensed under the GPL.
  */
 
 #include "sysbus.h"
@@ -14,7 +14,7 @@
 
 /* Bitbanded IO.  Each word corresponds to a single bit.  */
 
-/* Get the byte address of the real memory for a bitband acess.  */
+/* Get the byte address of the real memory for a bitband access.  */
 static inline uint32_t bitband_addr(void * opaque, uint32_t addr)
 {
     uint32_t res;