Fixed network agent config not set properly

Added the missing information in network agent
config. Migrated the logic from the old data stack
DataConnection.

Fix: 220648274
Test: atest DataNetworkTest

Merged-In: I2eaa020b48873135dc2bc0b8ecb35b8f8bdf27bd
Change-Id: I2eaa020b48873135dc2bc0b8ecb35b8f8bdf27bd