hijack.sh: kill the mtrace after test

Need to kill the mtrace-reader.py process after the test
to prevent the conflicts between each case.

Signed-off-by: Keqiao Zhang <keqiao.zhang@intel.com>

Author: keqiaozhang

case-lib/hijack.sh

@@ -7,6 +7,8 @@ trap 'func_exit_handler $?' EXIT
 function func_exit_handler()
 {
     local exit_status=${1:-0}
+    local loggerBin wcLog; loggerBin=sof-logger
+    local mtraceBin; mtraceBin=mtrace-reader.py
 
     # call trace
     if [ "$exit_status" -ne 0 ] ; then
@@ -24,7 +26,7 @@ function func_exit_handler()
     fi
 
     # when sof logger collect is open
-    if [ "X$SOF_LOG_COLLECT" == "X1" ]; then
+    if [ "X$SOF_LOG_COLLECT" == "X1" ] && ! is_ipc4_zephyr; then
         # when error occurs, exit and catch etrace log
         [[ $exit_status -eq 1 ]] && {
             func_lib_start_log_collect 1
@@ -54,7 +56,6 @@ function func_exit_handler()
         # shellcheck disable=SC2154
         logfile="$logfile"
 
-        local loggerBin wcLog; loggerBin=$(basename "$SOFLOGGER")
         # We need this to avoid the confusion of a "Terminated" message
         # without context.
         dlogi "pkill -TERM $loggerBin"
@@ -100,6 +101,14 @@ function func_exit_handler()
 
     fi
 
+    if is_ipc4_zephyr; then
+        dlogi "pkill -TERM -f $mtraceBin"
+        sudo pkill -TERM -f "$mtraceBin" || {
+            dloge "mtrace-reader.py was already dead"
+            exit_status=1
+        }
+    fi
+
     stop_test || exit_status=1
 
     if [ "$ENABLE_STORAGE_CHECKS" = '1' ]; then