[sanitizer] Move statfs/fstatfs to common interceptors and add statvfs/fstatvfs.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@192965 91177308-0d34-0410-b5e6-96231b3b80d8
[sanitizer] Fix OSX build.


git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@192966 91177308-0d34-0410-b5e6-96231b3b80d8