Treble compliance.
Bug: 70228425
Bug: 70393317
Test: complete wifi test in b/70393317
Test: Test wifi on Taimen and Sailfish
Test: verify sockets exist in /data/vendor/wifi/wpa/sockets
Change-Id: I217c0eda0e5af50bb603cfcc35d60bf0d9cad72e
Move hostapd to vendor/bin/ because it's only used by WIFI HAL.
This commit is for sepolicy corresponding changes.
Bug: 34236942
Bug: 34237659
Test: Hotspot works fine. Integration test.
Change-Id: I2ee165970a20f4015d5d62fc590d448e9acb92c1