qcacld-3.0: Suppress frequent log from dmesg
Currently in lim_update_sta_run_time_ht_switch_chnl_params
"RoC is in progress" is coming frequently in dmesg due to
error log level which leads to crash.
Fix is to change the log level to debug.
Change-Id: Ib089e7187b6056728e8b6fd18b69c89c761fb1c9
CRs-Fixed: 2005093