[automerger skipped] Add HAL API for enabling DSDS setModemsConfig and...

[automerger skipped] Add HAL API for enabling DSDS setModemsConfig and getModemsConfig APIs will allow the framework to set the number of live modems to switch to single/multi sim state am: dd7937b7 am: ee43c27f
am: 4ef4f6cc -s ours
am skip reason: change_id Ib200ffa5f2aebe21caf2b761407c79828730e6f1 with SHA1 28cd6450 is in history

Change-Id: I1159132f181cad4cc063fcc27b4d9ef3777a39f4