Teamd timer changes (sonic-net#17)

* Remove 100ms timer

* Creating symlink for accessing the teamd_unified socket with the portchannel named socket

* added yang changes to support both teamd mode

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Co-authored-by: Sandeep Kulambi <[email protected]>
Co-authored-by: Yogapriya Mohankumar <[email protected]>
Signed-off-by: Venkata Gouri Rajesh Etla <[email protected]>

Author: 3 people