95fcoe: Fix startup when fcoe module is included
    
    The parse-fcoe.sh hook is sourced, and hence must not contain
    exit 0 calls. Otherwise, the cmdline sequence will be interupted,
    and no error will be reported to systemd. Use return instead.
    
    Reference: boo#1136977
    (cherry picked from commit 4f194276417237168f5bc929ba847a23b6a4c77f)
    
    Resolves: #1914957
    
    patch_name: 0131.patch
    present_in_specfile: true
    location_in_specfile: 131
    squash_commits: true