WPS: Update configuration file after re-enabling networks

WPS: Update configuration file after re-enabling networks

Network blocks are disabled during a WPS provisioning step and 10
seconds after this to allow the newly provisioned network to be
selected. The disabled=1 flag gets written to the configuration file
when the credential is added since it happens during this process.
Update the file again after the networks have been re-enabled to avoid
leaving the configuration file into state that is not consistent with
the running configuration.

Signed-hostap: Jouni Malinen <jouni@qca.qualcomm.com>