Rename BinderTest to NetdBinderTest.

This avoids confusion when looking at VTS results, which present
the results by class name, and mix the results for this test with
the results for a BinderTest in frameworks/native/libs/binder.

Test: atest netd_integration_test
Bug: 158164961
Original-Change: https://android-review.googlesource.com/1323471
Merged-In: I0d8affac654edcbeadbd44c3f624f04a8fcd766b
Change-Id: I0d8affac654edcbeadbd44c3f624f04a8fcd766b