TeleService : Add networkmode changed listener

GSM option screen also has networkmode select list when
isLteOnCdma is true, but there is no preference change
listener.

Add preference change listener for it.

CRs-Fixed: 746647

Change-Id: Ic3b914d93c8507307bbfa940d4546ee0deceae08
CSVT: disable video call setting for none-CU mode.

Change-Id: I2163e60ee57671c154491ee94044bc2353ae6973
Remove redundant line to fix build error

Change-Id: I38b9186d8e94679639290f32c2359f35d7dddaba
IMS: call foward timer based on UT interface.

Change-Id: I847011f3905a7175bf331a313839828cb1825436
Telephony: Return the correct res id for text and tone

Return the correct id of showing text and playing tone
for each DisconnectCause (clear code).

Change-Id: Iad87dbe34b74b94978c21968dce09913af691392
TeleService: Add Chinese translation for "Make calls with" interface

There is no Chinese string for "Make calls with" interface.

Translate "Ask first" into Chinese.

CRs-Fixed: 749545

Change-Id: I7d06cf135057bbb26bd0aa4ea9149a7aeec95482
Fix DDS switch issue.

Set DDS back to previous sub when doing primary sub switch if user
do not want to switch DDS.

Change-Id: Ic8368862977fcad2e9082e5f9608bdf3daef6353
TeleService: Add Chinese string for 4G LTE setting

There is no Chinese string for 4G LTE setting.

Translate the title and summary of mButton4glte into Chinese
when system language is Chinese.

CRs-Fixed: 745986

Change-Id: I02d83a371d60fce4d6001ace929700a804d54b08
Merge "IMS: call foward timer based on UT interface."
TeleService: Add some Chinese string for preferred network mode

It lacks some Chinese string for preferred network mode.

Add some Chinese string for preferred network mode.

CRs-Fixed: 752381

Change-Id: I79b33219f4a63a0dc325d142ce8732b4038350e6
Merge "Telephony: Return the correct res id for text and tone"
Merge "Fix DDS switch issue."
Merge "TeleService: Add Chinese translation for "Make calls with" interface"
TeleService: Correct the network type when getting operator numeric

Need to fetch the family by radio technology got from ServiceState
rather than TelephonyManager.

CRs-Fixed: 743497

Change-Id: Ife38e29f8e5bc99049c9a9ea6540fd50841ebc71
IMS-VT: Do not allow changing the TTY mode during a Video call

When the device is already in a video call, the user SHOULD NOT
be allowed to change the TTY mode. If the user tries to change,
then an UI alert message will be displayed explaining it cannot
be changed during video calls.

Change-Id: Ibb089c125d509ae8d2ebd3d351850dc20ec1b074
CRs-Fixed: 734258
Merge "TeleService: Add some Chinese string for preferred network mode"
Merge "TeleService: Correct the network type when getting operator numeric"
Merge "CSVT: disable video call setting for none-CU mode."
Merge "TeleService: Add Chinese string for 4G LTE setting"
Merge "IMS-VT: Do not allow changing the TTY mode during a Video call"