Add 60msec delay before sending EAPOL4 frame

Add 60msec delay before sending EAPOL4 frame, since Flames
sink is not able to send the ACK for EAPOL4 if we send with out
any delay
Do not send command "SETMIRACAST" to the driver

SETMIRACAST command is not implemented in the driver,
so do not send the command to the driver. Currently,
driver does not take any action if miracast mode is active.