Merge CellInfo TYPE Enums

CellIdentity and CellInfo had redundant enums to
designate the structure type. This CL merges the
better-formatted enums from CellIdentity to
CellInfo, removing the set from CellIdentity.
For cases where the structure type must be determined
at runtime based on a CellInfo record, (where
polymorphic behavior isn't/shouldn't be supported),
this provides a consistent mechanism for determining
the type without using RTTI.
In addition, this CL fixes two other minor issues:
1) The constructor for CellInfoWcdma() provided the
   wrong parcel type to the parent class.
2) The TYPE_TDSCDMA had a typo in CellInfo and was
   written as TYPE_TDCDMA.

Bug: 112003199
Bug: 67711865
Test: runtest frameworks-telephony
Change-Id: I5ca3c2de1433dfcef264e1273a658d1a0fe864b6