Duplication of VAD parameters
# Bug description
Some static parameters in the VAD module are duplicated, e.g.
* active_cnt \<-\> active_fr_cnt_fx
* var_SID_rate_flag \<-\> var_SID_rate_flag_fx
* interval_SID \<-\> interval_SID_fx
Also, the CLDFB VAD handle is duplicated:
* hVAD_CLDFB \<-\> vad_st
Further, the initialization is duplicated and not consistent between EVS and IVAS modules:
* wb_vad_init_fx() \<-\> wb_vad_init_ivas_fx()
Only a single set of parameters/handles/functions should be used to ensure their consistency.
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issue