In current scenario mlo_free_connect_ies() and qdf_mem_free()
use to free up connect request and sub memory.
Similarly wlan_cm_free_connect_req_param() also free up the
connect request and its sub memory.
So replace mlo_free_connect_ies() and qdf_mem_free() with
wlan_cm_free_connect_req(). Also replace mlo_free_connect_ies()
with wlan_cm_free_connect_req_param() to avoid code duplication.
Change-Id: I37a930c3b7e63eaa8b9df9433fdc25b25d562a3c
CRs-Fixed: 3554198