tracing: fix trace_defs.h dependency
tracing: fix trace_defs.h dependency

linusyang/barrelfish,mslovy/barrelfish,BarrelfishOS/barrelfish,kishoredbn/barrelfish,linusyang/barrelfish,8l/barrelfish,mslovy/barrelfish,utsav2601/cmpe295A,BarrelfishOS/barrelfish,BarrelfishOS/barrelfish,BarrelfishOS/barrelfish,linusyang/barrelfish,utsav2601/cmpe295A,kishoredbn/barrelfish,kishoredbn/barrelfish,BarrelfishOS/barrelfish,kishoredbn/barrelfish,8l/barrelfish,kishoredbn/barrelfish,utsav2601/cmpe295A,BarrelfishOS/barrelfish,BarrelfishOS/barrelfish,BarrelfishOS/barrelfish,8l/barrelfish,8l/barrelfish,8l/barrelfish,mslovy/barrelfish,utsav2601/cmpe295A,mslovy/barrelfish,linusyang/barrelfish,mslovy/barrelfish,BarrelfishOS/barrelfish,utsav2601/cmpe295A,mslovy/barrelfish,8l/barrelfish,linusyang/barrelfish,utsav2601/cmpe295A,kishoredbn/barrelfish