Cleanup and changes of responseCdmaInformationReocrds, Broadcast SMS

Cleanup and changes of responseCdmaInformationReocrds, Broadcast SMS
configuration and reponseRilSignalStrength.

From Motorola, change reponseCdmaInformationRecords to use string for
marshalling and simplify by removing duplicate code.

Change Broadcast SMS configuration adding some some new fields
for Gsm Broadcast configuration and some name changes to be
more coherent.

Cleanup responseRilSignalStrength, includes some code refactoring
and removing the sending of the number of intergers. Now it is assumed
that a RIL_SignalStrength structure being sent so it is not necessary to
send the length. There is a corresponding change in
frameworks/base/telephony/java/com/android/internal/telephony/RIL.java.