Added OperatorInfo in Scan Result.

The following changes were made becuase we added the new CellIdentity
Structures in the types.hal. And those new CellIdentity structures are used
in the function networkScanResult in RadioIndication.java, in the function
getCellInfoListResponse in RadioResponse.java and in the function
convertHalCellInfoList in RIL.java.

Bug: 63984327
Test: Basic telephony sanity
Change-Id: I33e3169d2e90db3c32f59977917e02350c18a26d