Update Roboto to upstream version 2.138

- Fixes regression with advance width of Roman numerals, among other
  composite glyphs (https://github.com/google/roboto/issues/251).
  Ninety-three glyphs are fixed per font.

- Adds Condensed Medium fonts (not added to the build yet).

- For complete lists of changes, see changes from December 15, 2016
  to May 25, 2017 at https://github.com/google/roboto/commits/master.

Change-Id: If32331eec873409b8bdfec7b06409d3ef1fe4958
Fixes: 38483908
Bug: 62201012
Test: Comprehensive comparison of TTX dumps
21 files changed