Move Wifi resources to apex_defaults

apex_defaults previously didn't support `apps`
attribute, so apps was duplicated. Refactor to
remove duplication.

Bug: 146163587
Test: device boots up and connects to wifi
Test: atest wifi_e2e_tests (apex install & rollback test)
Change-Id: Id6a0772fb80b57c43df3ef5f6126d37452ee0738
2 files changed