Revert "Revert "manifest: Trebuchet""

Blockers are all out of the way, lets do this thing.
This reverts commit fd42a60e05f2bee1a29f78a5ab48d1a6b79eadaf.

Change-Id: Icc050376c32af0cefe7a71b3c3a58da5f9bb518d
manifest: Track our own prebuilts/misc

Change-Id: I82366a40841b2c535ef6dc68e1c1cd3b914ded27
Add telephony-msim to the build

Change-Id: I6e18f97ce162476a8d3c339997005d1515361306