Fix typo in previous commit:

2012-10-07  Matthias Klose  <doko@ubuntu.com>

        * config/arm/unwind-arm.h (__gnu_unwind_24bit): Mark parameters
        as unused.
        (_Unwind_decode_typeinfo_ptr): Mark base as unused.

From-SVN: r192182

libgcc/config/arm/unwind-arm.h

@@ -67,7 +67,7 @@ extern "C" {
 
   static inline _Unwind_Reason_Code
   __gnu_unwind_24bit (_Unwind_Context * context __attribute__ ((unused)),
-                      _Unwind_Context *_uw data __attribute__ ((unused)),
+                      _uw data __attribute__ ((unused)),
                       int compact __attribute__ ((unused)))
     {
       return _URC_FAILURE;