Merge "Add README.version for external/compiler-rt." am: dff6369
am: 4658a9f

* commit '4658a9ffa0985bccbdfaa12fda2900a013a86d5b':
  Add README.version for external/compiler-rt.

Change-Id: I0b84bef78ce739f9ea60d19620676e26280467f4