Revert "Issue #1053 - Part 1c: Remove references to mobile/android targets and paths"

This reverts commit b21588597c.

testing/mozharness/configs/android/androidarm_4_3-tc.py

@@ -0,0 +1,10 @@
+config = {
+    # Additional Android 4.3 settings required when running in taskcluster.
+    "avds_dir": "/home/worker/workspace/build/.android",
+    "tooltool_cache": "/home/worker/tooltool_cache",
+    "download_tooltool": True,
+    "tooltool_servers": ['http://relengapi/tooltool/'],
+    "exes": {
+        'adb': '%(abs_work_dir)s/android-sdk18/platform-tools/adb',
+    }
+}