Save & restore suiteB ciphers

Bug: 272755865
Test: atest FrameworksWifiTest
Test: Connected to WPA3-Enterprise-RSA network and rebooted the phone.
On reboot, phone was able to connect. Also verified that the AllowedSuiteBCipheres are stored correctly in WifiConfigStore.xml.

Change-Id: I5a9309c06915dd5b52bf8e61cf3cda3d3fc6f68e
4 files changed