[CTS] Add tests for hotspot2.OsuProvider getters

Added coverage for below APIs:
      getFriendlyName()
      getServerUri()

Bug: 150977165
Test: atest WifiHotspot2Test
Change-Id: I0abe5ab63dff6793103552870322da6a2f426dba
1 file changed
tree: 7b93856ccb61a92ba83595d3a0557a947fe2a755
  1. tests/