Add delay for hanging up number verification call

Add a 10 second delay before hanging up a call that was caught by the
number verification checker. This is so that the call doesn't end up
going to voicemail after the device hangs up.

Bug: 142721516
Test: manual, TelephonyManagerTestApp
Change-Id: Ic0832356e19cfd8e3d6deb8ee030d7c69c598e21
1 file changed