Write "wait" status to both logcat and stdout.

The various "wait" commands are invoked by tooling that might choose
to discard the stdout data, so this change also emits it to logcat
to aid debugging to failing tests.

Bug: 274681945
Test: atest CtsBroadcastTestCases
Change-Id: I6c68fe6e028a305c60a23df8a024e5e8925c8ee8