Shared libraries have .cr.so extension in Android component builds.
Tests were failing to load the ANGLE libraries with just .so extensions.

Bug: angleproject:4396
Change-Id: I88555c830c49136623ea9da9896f86ea6204f3b1
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/2076778Reviewed-by: Yuly Novikov <ynovikov@chromium.org>
Commit-Queue: Yuly Novikov <ynovikov@chromium.org>