tools/lib/lockdep: Add dummy print_irqtrace_events() implementation

This patch avoids that linking against liblockdep fails due to no
print_irqtrace_events() definition being available.

Signed-off-by: Bart Van Assche <[e-mail]>
Signed-off-by: Peter Zijlstra (Intel) <[e-mail]>
Cc: Johannes Berg <[e-mail]>
Cc: Linus Torvalds <[e-mail]>
Cc: Peter Zijlstra <[e-mail]>
Cc: Sasha Levin <[e-mail]>
Cc: Thomas Gleixner <[e-mail]>
Cc: Waiman Long <[e-mail]>
Cc: [e-mail]
Cc: [e-mail]
Link: https://lkml.kernel.org/r/[e-mail]
Signed-off-by: Ingo Molnar <[e-mail]>

tools/lib/lockdep/lockdep.c

···
 	abort();
 }
 
+void print_irqtrace_events(struct task_struct *curr)
+{
+	abort();
+}
+
 static struct new_utsname *init_utsname(void)
 {
 	static struct new_utsname n = (struct new_utsname) {