Fix merged perfetto trace The change to group the ftrace protos broke the merged proto because I had accidentally duplicated some entries in gen_merged_protos. This fixes the issue and adds a build target so this can't happen in future. Change-Id: Iba2a3dfa1836f2c36bdd65fea67b2518f1b03eeb
Perfetto is an open-source project for performance instrumentation and tracing of Linux/Android/Chrome platforms and user-space apps.
See www.perfetto.dev for docs.