Ignore NetworkTest when running CtsNetTestCases in instant app mode

Ignore NetworkTest#testBindSocketOfConnectedDatagramSocketThrows
when running CtsNetTestCases in instant app mode due to sockect
cannot bind in instant app mode.

Bug: 123366918
Test: atest CtsNetTestCases --instant
Test: atest FrameworksNetTests

Change-Id: I1e93d4491e3d9e5a095ff4b6169b2f70e7b3b690
Merged-In: Ia28eea113e19b9c44998677e5b8093be178a06a3
Merged-In: I1e93d4491e3d9e5a095ff4b6169b2f70e7b3b690
(cherry picked from commit 73c0d48b)