Merge "Identity: Move signingKeyBlob from finishRetrieval() to startRetrieval()." am: 90a34e51e1 am: a088726c45 am: c1871a6672 am: 9044cf4f9b am: fdc3a342b0

Change-Id: I09c6f6c60bbe57fe059be8b34294c8f979fc3656