Fix the context/cursor size for ARM with WMMX enabled

This was missed in SVN r274744 when the WMMX part was made optional;
when made optional, some struct fields were reordered, which caused
the total struct size to grow due to padding/alignment.

git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@316559 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed