net:wireless:bcmdhd: set rpt_hitxrate

net:wireless:bcmdhd: set rpt_hitxrate

Set the rpt_hitxrate to 1 so that link speed updated by WLC_GET_RATE
is the maximum transmit rate
rpt_hitxrate 0 : Here the rate reported is the most used rate in the
		link.
rpt_hitxrate 1 : Here the rate reported is the highest used rate in the
		link.
Otherwise linkspeed updated in the GUI is 802.11 NULL frame data rate
which is 24 Mbps.

Bug 200027022

Change-Id: I0c69b635d0b68c06f38297f39070cc5da04e478b
Signed-off-by: Raghu <kraghavender@nvidia.com>
Reviewed-on: http://git-master/r/455067
Reviewed-by: Narayan Reddy <narayanr@nvidia.com>
Reviewed-by: Rakesh Goyal <rgoyal@nvidia.com>
Reviewed-by: Laxman Dewangan <ldewangan@nvidia.com>
GVS: Gerrit_Virtual_Submit