init.qcom.post_boot: exclude CPUs 0-3 from isolation

- SnapdragonVoiceActivation feature for Far Field Voice version
affines its threads to 0-3 CPUs and so prevent them from isolation
for qcs605 target

Change-Id: I09ef5cc97ee245133315edc0821f3a2afc54e99b

rootdir/bin/init.qcom.post_boot.sh

@@ -3912,6 +3912,7 @@ case "$target" in
             esac
 
       # Core control parameters on silver
+      echo 0 0 0 0 1 1 > /sys/devices/system/cpu/cpu0/core_ctl/not_preferred
       echo 4 > /sys/devices/system/cpu/cpu0/core_ctl/min_cpus
       echo 60 > /sys/devices/system/cpu/cpu0/core_ctl/busy_up_thres
       echo 40 > /sys/devices/system/cpu/cpu0/core_ctl/busy_down_thres