[Sanitizer] Change MemoryMappingLayout methods to also report memory protection flags (for future use in leak checker). Patch by Sergey Matveev.

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@176931 91177308-0d34-0410-b5e6-96231b3b80d8
[Sanitizer] Fix a typo in function name

git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@176932 91177308-0d34-0410-b5e6-96231b3b80d8