qcacld-3.0: Update num_transmit_power_env before packing probe response
num_transmit_power_env of tDot11fProbeResponse should also update like
tDot11fBeacon2, otherwise default value is 0, and transmit power
envelope IE(195) will not pack into probe response template.
Fix it by updating num_transmit_power_env of tDot11fProbeResponse to
same as tDot11fBeacon2.
Change-Id: I865ba9d9ad96068c52d3d6434b113cb7662e95c6
CRs-Fixed: 2933031