FinalizePausedKeepalive in handleStopAllKeepalives.

In the case that a keepalive is paused and handleStopAllKeepalives is
called, there is no KeepaliveInfo for the paused keepalive and so no
onError callback will be called. The autoKi will also be cleaned up so
no callback will ever called that notifies the keepalive is stopped.

Bug: 281646074
Test: atest FrameworksNetTests
(cherry picked from https://android-review.googlesource.com/q/commit:9656e23d91b711f2568c2b60df21a09c365cf85d)
Merged-In: I8fcaa1f07746235326c7ae05d97e20fd27927fea
Change-Id: I8fcaa1f07746235326c7ae05d97e20fd27927fea
3 files changed