Suppress the wtf log for notifications that are expected

PARTIAL and NO_INTERNET may happen in the real world for
those transport types that provide internet. These two
notification types should be reasonable notificaitons, not a
terrible failure as the log. For Q, it may be too risky to
display more notifications with other information instead of
SSID. Thus, suppress the wtf log for these two notifications.

Bug: 135043192
Test: atest FrameworksNetTests
Change-Id: I35f3718fa93b403858587d918f0bc596f6c92f3e