ftrace/selftests: Fix spelling mistake "wakeing" -> "waking"

There is a spelling mistake in a trace_printk message. As well as in
the selftests that search for this string.

Link: http://lkml.kernel.org/r/20191115085938.38947-1-colin.king@canonical.com
Link: http://lkml.kernel.org/r/20191115090356.39572-1-colin.king@canonical.comSigned-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org>

samples/ftrace/ftrace-direct.c

@@ -6,7 +6,7 @@
 
 void my_direct_func(struct task_struct *p)
 {
-	trace_printk("wakeing up %s-%d\n", p->comm, p->pid);
+	trace_printk("waking up %s-%d\n", p->comm, p->pid);
 }
 
 extern void my_tramp(void *);

tools/testing/selftests/ftrace/test.d/direct/ftrace-direct.tc

@@ -11,7 +11,7 @@ fi
 echo "Let the module run a little"
 sleep 1
 
-grep -q "my_direct_func: wakeing up" trace
+grep -q "my_direct_func: waking up" trace
 
 rmmod ftrace-direct
 

tools/testing/selftests/ftrace/test.d/direct/kprobe-direct.tc

@@ -16,7 +16,7 @@ fi
 echo "Let the module run a little"
 sleep 1
 
-grep -q "my_direct_func: wakeing up" trace
+grep -q "my_direct_func: waking up" trace
 
 rmmod ftrace-direct
 
@@ -26,7 +26,7 @@ start_direct() {
 	echo > trace
 	modprobe ftrace-direct
 	sleep 1
-	grep -q "my_direct_func: wakeing up" trace
+	grep -q "my_direct_func: waking up" trace
 }
 
 stop_direct() {