In function mlme_init_btm_cfg(), initializing the
btm_solicited_timeout, btm_max_attempt_cnt and btm_sticky_time
is done using the cfg_default() api, which always returns the
default value irrespective of the ini configured. This results
in failure of ini configuration from the WCNSS_qcom_cfg.ini file.
Use cfg_get() api to get the default value of ini items.
Change-Id: I773676cc67878f233cb6d14e0ad3ec1d79a5518f
CRs-Fixed: 2461612