Fix typos.

Typos found with codespell.

Please keep in mind that this should have impact on actual code
and must be carefully evaluated:

src/core/or/lttng_circuit.inc
-    ctf_enum_value("CONTROLER", CIRCUIT_PURPOSE_CONTROLLER)
+    ctf_enum_value("CONTROLLER", CIRCUIT_PURPOSE_CONTROLLER)

src/core/mainloop/mainloop.c

@@ -1475,7 +1475,7 @@ get_my_roles(const or_options_t *options)
 
   /* We also consider tor to have the role of a client if the ControlPort is
    * set because a lot of things can be done over the control port which
-   * requires tor to have basic functionnalities. */
+   * requires tor to have basic functionalities. */
   int is_client = options_any_client_port_set(options) ||
                   options->ControlPort_set ||
                   options->OwningControllerFD != UINT64_MAX;