Correctly hide in-call panel when dialpad is shown

Cherry pick of Ia673f7c08abfdf240c792ce6a457c743f0db0b8e

Fixing issue 5497680 Device shows background Incall screen for
fraction of sec in DTMF call pad screen, if power button is turned
ON.

We're calling setInCallScreenMode(NORMAL) from onResume(), which
should take care of dialpad status correctly.

Bug: 5497680
Change-Id: Ib8346cfd5b1c98190d66603b24ceddf234754496
1 file changed