kx509: Prevent double free
kx509: Prevent double free

Patchset 750a09bca2183415be3ca3b8784e3417f484794b introduced the
potential for a double free of 'name'.

Change-Id: I23bd4ddb7d9b41cbb3948ab06245f4052b309971

madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal,madscientist159/heimdal