[nephos]: Separate config files from SAI debian package of Nephos (#1110

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- What I did
    Separate led and port config file from SAI debian package of Nephos

- How I did it
    The modification is as below:
    1. port config
       old path: /etc/nps/tau-s9130-32x100G.dsh
       new path: /usr/share/sonic/hwsku/port_config.nps
    2. led config
       old path: /etc/nps/tau-s9130-32x100G.cfg
       new path: /usr/share/sonic/platform/led_proc_init.nps

- How to verify it
    After the config files are separated, check switch interfaces and network features are work as well

- Description for the changelog
    Separate led and port config file from SAI debian package of Nephos

Signed-off-by: Sam Yang <yang.kaiyu@gmail.com>