Restored 'maxConnsTime' and 'maxConns' in data profile

These two fields are still needed for some carriers. Should
not be removed in 1.3. Reverted back to what we have in 1.0.

Test: Telephony sanity tests
Bug: 73659459
Change-Id: I33e7b9b0cb26b56fc3c0e011557657136cb38a6c