[WPA3] Restore @hide to WifiConfiguration#SuiteBCipher

Following up on API council review, restore the @hide
to WifiConfiguration#SuiteBCipher and removed the link
to it from WifiConfiguration#allowedSuiteBCiphers.
SuiteBCipher is used internally.

Bug: 148515393
Test: Compiles
Change-Id: I8fe85295f807d5f9ec1b00585026dc01b7c0f29a
2 files changed