framework/base : Fix for Wi-Fi grayed out issue

During the initialization WiFiMonitor shall try to open the
control / monitor socket interface with the supplicant.On a
failed attempt to open the control interface WiFiMonitor
thread shall trigger an event SUP_DISCONNECTION_EVENT to
WiFiStateMachine with the expectation that the connection
attempt is restarted.In addition , it shall also remove the
interface from the mIfaceMap. During the restart , WiFiMonitor
shall not proceed to open the control interface with the
supplicant if the mIfaceMap does not point to the interface.
  Thus , do not remove the interface from mIfaceMap on a failed
attempt to create a control interface with the supplicant to
provision a reinitialization attempt.

Change-Id: Ia571a386c22e860b3e31f5153ae33f622b5d5973
CRs-Fixed: 642586