hostapd: Add eap_reauth_period config option

This adds the eap_reauth_period to be used for modifying
the RADIUS server reauthentication authentication period,
a parameter that gets passed directly to the hostapd
configuration file.

Signed-off-by: Mathieu Olivari <mathieu@qca.qualcomm.com>
Signed-off-by: Luis R. Rodriguez <mcgrof@qca.qualcomm.com>

SVN-Revision: 38334