manta: cleanup

Change-Id: I610982a636a2398e56fb91f65e078833f642b205
update fingerprint to 4.4.2

Change-Id: I3a971e7c3bf5a5712935ba7b5ada26b93f59f4c4
update toolchain

Change-Id: Iec389637581c4aeedb01a3d90446775bddb1e011