Use ACCESS_WIFI_STATE when clearing wifi blacklist

Some tests using CtsNetUtils, like tethering CTS tests, do not hold
ACCESS_WIFI_STATE at install time. Use shell permissions to allow the
utility to work in such configurations.

Bug: 171621759
Test: atest CtsTetheringTest:TetheringManagerTest
Change-Id: I63e76918421e5deb59fe67a64674348fb8d20265
1 file changed
tree: 30272ca8d90dd789e786aa1caa8841c9562a9abf
  1. tests/
  2. Tethering/