meson: add -Dlog-trace to set LOG_TRACE
    
    The justification is the same as for -Dvalgrind: setting config in
    meson in this way is easier, because when the value is changed stuff
    that should be rebuilt is rebuilt.
    
    (cherry picked from commit fd5dec9adf76591d713f163d43d04e3beb76893e)
    
    Resolves: #1696224
    
    patch_name: 0155-meson-add-Dlog-trace-to-set-LOG_TRACE.patch
    present_in_specfile: true
    location_in_specfile: 155
    squash_commits: true