KeyStore: Add ks->ft_key_lifetime to the persistent format
KeyStore: Add ks->ft_key_lifetime to the persistent format

Add the ft_key_lifetime attribute of the keystore as an optional
field to the KeyStore persistent format.

Change-Id: Ifeb0b4fa1f5deeda6057f22706d1606fcaeac4f9

secure-endpoints/netidmgr,secure-endpoints/netidmgr,secure-endpoints/netidmgr,secure-endpoints/netidmgr,secure-endpoints/netidmgr