Fix getting IP, BP and SP for address sanitizer's needs on FreeBSD in 32-bit mode

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@210988 91177308-0d34-0410-b5e6-96231b3b80d8
Fix building InstrProfilingFile.c on FreeBSD

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@210989 91177308-0d34-0410-b5e6-96231b3b80d8