telephony: disable the use of SMS_EXPECT_MORE by default (1/2)

CodeAurora added the use of the RIL_REQUEST_SEND_SMS_EXPECT_MORE API
which is not supported by every RIL. Disabled it by default to reflect
AOSP behavior and added a flag to enable it.

Change-Id: I837c161bbca3960e7458ea049f896218d5e60a63

Conflicts:
	core/res/res/values/config.xml
framework/base: CS translation

- AOSP: added new keygurad messages, locksreen messages, pinpuk
attempts, USSD/SS/DIAL request messages

Change-Id: Ife18ca6099f9eb9d165ad4b047c6db7022da3775

Conflicts:
	core/res/res/values-cs/cm_strings.xml