- Allow Address pair was not getting removed if it has 1 entrey - Fixed it.
    issue was if all Allow address pair was removed the sending JSON was
    wrong fixed it
- Tool tip was showing wrong for icon changed it.
- MAC Address validation was not happening for the lastset fixed it.
Partial-Bug: #1400590

Change-Id: I90c477f3f045dbd400fe495ec95a281b7cc490df