Rename apprtc lib to match GN lib rules.

Chromium's src/build/config/android/internal_rules.gni says java lib
target names must end with _java or _javalib.

Review-Url: https://codereview.webrtc.org/2117283002
Cr-Original-Commit-Position: refs/heads/master@{#13382}
Cr-Mirrored-From: https://chromium.googlesource.com/external/webrtc
Cr-Mirrored-Commit: 9a123aa0c3c1a3b4637fe5f573cad51648c53e5d
1 file changed