* enable Wunused, first pass * unused stuff in snpe model * these are used on phone * handle sigint and sigterm in modeld * fix phone build * camera qcom * QCOM build works * delete unused camerad vars Co-authored-by: Comma Device <device@comma.ai> old-commit-hash: eb1aa3d831fd0d7fffd9aacec1accb0a5bdb0304