SkJumper: Linux

Just need to take care to match C symbols with asm symbols.  Linux
doesn't add the leading underscore automatically like Mac and Windows.

Change-Id: I488cdfec942b442554ffefdfd006a1305ad77d9d
Reviewed-on: https://skia-review.googlesource.com/8667
Reviewed-by: Mike Klein <mtklein@chromium.org>
Commit-Queue: Mike Klein <mtklein@chromium.org>
2 files changed