Add support for send Message with messaging options.

Add support for following messaging options.

1.Add support for message priority in 3gpp2.

2.Add link control support while sending multiple messages.

3.Add validity period support in 3gpp.

Change-Id: I53bb027531959f71285e5f79896768a591129536
Conflicts:
src/java/com/android/internal/telephony/CommandsInterface.java
src/java/com/android/internal/telephony/RIL.java
src/java/com/android/internal/telephony/SMSDispatcher.java
src/java/com/android/internal/telephony/cdma/CdmaSMSDispatcher.java
src/java/com/android/internal/telephony/gsm/GsmSMSDispatcher.java