Fixes to read the floating point and exception registers sets out
of arm Mach-O core files.
<rdar://problem/13665075>


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@181755 91177308-0d34-0410-b5e6-96231b3b80d8
Small change to the previous checkin, read in the fpu register context
in one large block - and be sure toget the fpscr value as well when
processing a core file.


git-svn-id: https://llvm.org/svn/llvm-project/lldb/trunk@181756 91177308-0d34-0410-b5e6-96231b3b80d8