Reintroduce commit ffda3e29.

Android requires system libraries to include symbols to aid
debugging. This CL will compress and attach the symbols from the
unstripped .so and add it to the stripped .so that goes in the apk
when building a release build.

Fix https://crbug.com/916751 introduced by Compress symbol
support CL ffda3e29.

Bug: angleproject:2981
Change-Id: I8d3ef8e9f0ed44bdd24290f6cd56ba674b79f98c
Reviewed-on: https://chromium-review.googlesource.com/c/1387344Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Courtney Goeltzenleuchter <courtneygo@google.com>