SEEK: Following changes have been made for SEEK

1. Add support for getAtr api.
   Implement getAtr() for SEEK on Android.

2. Add Multi Sim support for SEEK.

   MSim support for the following apis has been added:

   1. iccOpenLogicalChannel
   2. iccCloseLogicalChannel
   3. iccTransmitApduLogicalChannel
   4. iccTransmitApduBasicChannel
   5. iccExchangeSimIO
   6. getAtr

Conflicts:
	telephony/java/com/android/internal/telephony/ITelephony.aidl
	telephony/java/com/android/internal/telephony/RILConstants.java

Change-Id: If03cbd4f3b108b77ba7998a605776c8626290cee