Fix bluetooth settings will broadcast to anywhere when some cases

BluetoothPermissionActivity and DevicePickerFragment will send
broadcast to return the result to calling apps. As this broadcast
intent is from Settings with uid 1000, it will be sent to any
protected BroadcastReceivers in the device. It can make an attacker
send broadcast to protected BroadcastReceivers like factory reset intent
(android/com.android.server.MasterClearReceiver) via
BluetoothPermissionActivity or DevicePickerFragment.

This CL will compare to calling package name with launch package name.
If they are not equal, the broadcast will not send to launch package name.

Bug: 179386960
Bug: 179386068
Test: make -j42 RunSettingsRoboTests and use test apk to manually test
to verify factory reset not started and no system UI notification.

Change-Id: Ib8a5acde663e875912d300dd4912c4e9416f02f1