ANDROID: vendor_hooks: Export the tracepoints task_rename

Export the tracepoint task_rename and let module probe it.

Bug: 189985971

Change-Id: I3bb71eae316e3096d361e7b47012ba46ea4be509
Signed-off-by: Liujie Xie <xieliujie@oppo.com>
diff --git a/fs/exec.c b/fs/exec.c
index 4b3ac65..ec5ef10 100644
--- a/fs/exec.c
+++ b/fs/exec.c
@@ -75,6 +75,8 @@
 #include <trace/events/sched.h>
 #include <trace/hooks/sched.h>
 
+EXPORT_TRACEPOINT_SYMBOL_GPL(task_rename);
+
 static int bprm_creds_from_file(struct linux_binprm *bprm);
 
 int suid_dumpable = 0;