Add 'end' to pr_info for consistency

Add 'end' to the log message in ai_one_work_func to match the format
used in ai_two_work_func.This improves clarity and consistency in logs.

Co-authored-by: Cheng-Yang Chou <[email protected]>

Author: charliechiou

Diff for: main.c

@@ -222,7 +222,7 @@ static void ai_one_work_func(struct work_struct *w)
     tv_end = ktime_get();
 
     nsecs = (s64) ktime_to_ns(ktime_sub(tv_end, tv_start));
-    pr_info("kxo: [CPU#%d] doing %s for %llu usec\n", cpu, __func__,
+    pr_info("kxo: [CPU#%d] end doing %s for %llu usec\n", cpu, __func__,
             (unsigned long long) nsecs >> 10);
     put_cpu();
 }