Rename shared utils to connectivity-module-utils

Rename net-module-utils-srcs to connectivity-module-utils-srcs.

This is done as the module utils are made specific to
service-connectivity to contain only classes used by
service-connectivity.

Bug: 192998401
Test: Tests prepared in next change
Change-Id: I354f4b84aa90cc12579c4db5479cf2de1dc9cf5d
1 file changed