Preinstalled overlays needn't be signed with the same cert
as the package it overlays, simply being preinstalled is
enough. Sign with the default cert instead for now, which
provides fewer special privileges.

Bug: 162195999
Test: verify values still overlaid correctly
Change-Id: I017491fd383551c5aadf8648edb900e0c12a27b8

Change-Id: I37db0f8662f771885cf6e75027e23c62a51f7257

Change-Id: Ia57acd244608848f70fdcc30d5694c919db60671

The wifi interface names for wifi can either be wlan0 or wlan1.
Change the "config_tether_wifi_regexs" appropriately.

Bug: 80375412
Test: Ensured we display "Hotspot on" in settings when softap is started
on either wlan0 or wlan1.

Change-Id: I0c456412f9b71ef2ee784f3bfa58b01b9287ca73

This now matches WifiOverlay.

Change-Id: I9e4e859b7aca75d41556ea5807e34a4eb4598266

Tethering package is APEX and we need to create a RRO to overwrite
the values for config_tether_wifi_regexs and config_tether_wifi_p2p_regexs.
BUG: 163800715

Signed-off-by: Weilun Du <wdu@google.com>
Change-Id: Ia0834f5215ff8c3b13effa591bd2f84d93419a06

Bug: 148617260
Test: Device boots up and connects to wifi networks.
Change-Id: Iec27a6d947a232a42451ef095dc73d1a52327db5