[compiler-rt] [sanitizers] Add VMA size check at runtime

[compiler-rt] [sanitizers] Add VMA size check at runtime

This patch adds a runtime check for asan, dfsan, msan, and tsan for
architectures that support multiple VMA size (like aarch64).  Currently
the check only prints a warning indicating which is the VMA built and
expected against the one detected at runtime.

llvm-svn: 247413