toolchain/gcc/4.2.4: Add missing hunk to gcc 4.2.4 libgcc patch.

This patch is required to build gcc 4.2.4 libgcc with dwarf2
unwinding support enabled.

Signed-off-by: Will Newton <will.newton@imgtec.com>
Signed-off-by: Peter Korsgaard <jacmet@sunsite.dk>

toolchain/gcc/4.2.4/1001-gcc-4.2.x-inhibit-libc.patch

@@ -47,3 +47,20 @@
  alias (_Unwind_Find_FDE);
  #endif
 +#endif
+--- gcc-4.2.4/gcc/unwind-dw2-fde.c	2005-06-25 03:02:01.000000000 +0100
++++ gcc-4.2.4/gcc/unwind-dw2-fde.c	2010-08-12 10:43:24.221690613 +0100
+@@ -29,6 +29,8 @@
+ Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
+ 02110-1301, USA.  */
+
++#ifndef inhibit_libc
++
+ #ifndef _Unwind_Find_FDE
+ #include "tconfig.h"
+ #include "tsystem.h"
+@@ -1028,3 +1030,5 @@
+
+   return f;
+ }
++
++#endif