GitLab

Now the only remaining and used function in pm49fl00x.c is unlock_49fl00x.

Also:
 - Add missing unlock to AMIC A49LF040A.
 - Add lock_49fl00x function.

Corresponding to flashrom svn r917.
Signed-off-by: Sean Nelson <audiohacked@gmail.com>
Acked-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006@gmx.net>