wireless-regdb: Do not hardcode 'sforshee' in the certificate commonName

gen-pubcert.sh hardcodes the 'sforshee' common name when generating the
certificate.  Make it depend on REGDB_AUTHOR instead, which defaults to
$(whoami).

Signed-off-by: Nicolas Cavallari <nicolas.cavallari@green-communications.fr>
Signed-off-by: Seth Forshee <seth.forshee@canonical.com>
2 files changed