Make change and version bump to r_aml_300800200 for mainline module file: packages/Tethering/apex/manifest.json

Change-Id: I265ac5f72edf4fdb396ed00c7db5d30d21706f6e
tree: 5648e412f1ff00cd63ae9035c2629c8b7d1941fb
  1. Tethering/