Incorrect ini values are read for the roam_scan_inactivity_time
and roam_scan_period_after_inactivity. So wrong values are
populated to firmware. This is seen with wlan-connection-roaming.ini
ini file is present on the device.
Read the value for roam_scan_inactivity_time from
CFG_ROAM_SCAN_INACTIVE_TIMER and read roam_scan_period_after_inactivity
from CFG_ROAM_SCAN_SECOND_TIMER.
Change-Id: I98a9d99f09200a021a123226cfb714b1c49c51d5
CRs-Fixed: 3259600