Exclude testGetMultipathPreference on no Wi-Fi devices

Bug: 202228414
Test: atest CtsNetTestCases
Change-Id: Ie7cd52942b93de5d0b0dd5be49d1f85afafb4ea7
Merged-In: I3112ffb816fd16b2fc7a87c35d8f95eef0144281
(cherry picked from commit db354f783efca0ed7506e3cbf01e1715ab593ae6)
1 file changed