rv: Fix a typo

Fix a typo in comments.

Cc: Masami Hiramatsu <[email protected]>
Cc: Mathieu Desnoyers <[email protected]>
Link: https://lore.kernel.org/[email protected]
Reported-by: Matthew Wilcox <[email protected]>
Signed-off-by: Andrew Kreimer <[email protected]>
Signed-off-by: Steven Rostedt (Google) <[email protected]>

Author: algonell

kernel/trace/rv/rv.c

@@ -41,7 +41,7 @@
  * per-task monitor, and so on), and the helper functions that glue the
  * monitor to the system via trace. Generally, a monitor includes some form
  * of trace output as a reaction for event parsing and exceptions,
- * as depicted bellow:
+ * as depicted below:
  *
  * Linux  +----- RV Monitor ----------------------------------+ Formal
  *  Realm |                                                   |  Realm