Passpoint: add FQDN and Provider name field in WifiInfo

As part of new Passpoint UX, quick Setting and "Network &* internet"
screen of Settings needs to present Provider name when Passpoint AP is
connected instead of displaying SSID of the AP.

In addition, Wifi Picker needs to match current passpoint connection
info with Passpoint AccessPoint by FQDN.

So, the two fields are added in WifiInfo

Bug: 124462043
Test: ./frameworks/base/wifi/tests/runtests.sh
Test: Tested with Passpoint AP and confirmed that the info is set
correctly.
Change-Id: I7215cba671e1c7eb07fbacb9d546d810cc26e826
Signed-off-by: Ecco Park <eccopark@google.com>