Fix LingerMonitor notification rate limiting

If time since boot is lower than the rate limit, notifications would not
be shown.
This is causing tests to fail on continuous testing.

Test: atest FrameworksNetTests
Bug: b/117516272
Change-Id: I03da28f2ca61119fa0ef9534bb4ce3f6406c1ff2
1 file changed
tree: e9f7fe4618a1fcd54fa904c005f7e4c8a11e0384
  1. core/
  2. services/
  3. tests/