init.d/vzeventd-redhat: add Required-Stop, Required-Start

Basically, we need to have Required-Start and Required-Stop.
Also, we need to depend on $remote_fs since /usr might be on it.

These are the messages from Debian QA script:

W: vzctl: init.d-script-missing-lsb-keyword /etc/init.d/vzeventd required-stop
N:
N:    This /etc/init.d script has an LSB keyword section, but it is missing
N:    the given required LSB keyword. If the value of this keyword should be
N:    empty, please still include it in the LSB keyword section with an empty
N:    value.
N:
N:    Refer to http://wiki.debian.org/LSBInitScripts for details.
N:
N:    Severity: normal, Certainty: certain
N:

W: vzctl: init.d-script-missing-lsb-keyword /etc/init.d/vzeventd required-start

E: vzctl: init.d-script-missing-dependency-on-remote_fs /etc/init.d/vzeventd: required-start
N:
N:    The given init script seems to refer to /usr, possibly using a file or
N:    binary from there. Without a dependency on $remote_fs in Required-Start
N:    or Required-Stop, as appropriate, the init script might be run before
N:    /usr is mounted or after it's unmounted.
N:
N:    Using Should-Start or Should-Stop to declare the dependency is
N:    conceptually incorrect since the $remote_fs facility is always
N:    available. Required-Start or Required-Stop should be used instead. Also,
N:    please note that $all should not be used in Required-Stop, only
N:    Required-Start.
N:
N:    Refer to http://wiki.debian.org/LSBInitScripts for details.
N:
N:    Severity: important, Certainty: possible
N:

E: vzctl: init.d-script-missing-dependency-on-remote_fs /etc/init.d/vzeventd: required-stop
1 file changed