phase2_private_key_password
Description:
The password used to decrypt the "phase 2" private key specified in the NMSetting8021x:phase2-private-key
property when the
private key either uses the path scheme, or is a PKCS#12 format key.
Setting this property directly is not generally necessary except when returning secrets to NetworkManager; it is generally set automatically when setting the private key by the set_phase2_private_key function.