As there is no strong reason to keep the constructors module-lib, set
them as public API.
This is in response to API feedback.
Fixes: 183446251
Test: m
Change-Id: I01daa6f6f8095f7a4db94d1ca05f913166939df3
ParseException constructors are used by both platform and mainline
module code, so they can't be package-private.
Removing dependencies on either side is not possible as the class
itself is part of the public API, and supports APIs on both sides.
Having the constructors part of the API makes the class usable by both
sides.
Fixes: 182705505
Test: CtsNetTestCases for APIs using the exception
Change-Id: Ia396ab2fa3afaed3cf474c8e60f72fc7f3f4fded
ParseException is a public API class used to support Connectivity APIs,
so it should be in the same API surface as connectivity.
Bug: 181512874
Test: m
Change-Id: Ie1213de0d0facc8f409f7b4c2553abb382e4afbf
