Fix up the flip action

Reworked the CallFeaturesSettings.java part based off the old commit,
https://github.com/PAC-man/android_packages_services_Telephony/commit/3b24a4f0a8ee314d0f828e10f30aad2a339ebb1f

Change-Id: Ida9772277ebf56c734d1ccfceed01d8c1a3b6571
Signed-off-by: Lokesh Chamane <lokesh.c703@gmail.com>