Configure flag to debug remain on channel issues.

Add flag to configuration file to debug remain on
channel. This flag is used to send marker frames
at start and end of remain on channel.

Change-Id: I0a61e205144004617b0b21551e174c424323cece
CRs-Fixed: 594906
Wlan: Revision 3.2.3.213c

Revision 3.2.3.213c