lib: fix backticks matching in Doxygen comments

Doxygen 1.15 detects valid errors. Fixing the same.

Example:
lib/eventdev/rte_event_timer_adapter.h:720: error: Reached end of file
while still searching closing '`' of a verbatim block starting at line
569 (warning treated as error, aborting now)

Fixes: a6562f6 ("eventdev: introduce event timer adapter")
Cc: [email protected]

Signed-off-by: Jerin Jacob <[email protected]>
Acked-by: Stephen Hemminger <[email protected]>
Acked-by: Erik Gabriel Carrillo <[email protected]>

Author: Jerin Jacob

lib/eventdev/rte_event_timer_adapter.h

@@ -566,7 +566,7 @@ struct __rte_cache_aligned rte_event_timer_adapter {
  * Before calling this function, the application allocates
  * ``struct rte_event_timer`` objects from mempool or huge page backed
  * application buffers of desired size. On successful allocation,
- * application updates the `struct rte_event_timer`` attributes such as
+ * application updates the ``struct rte_event_timer`` attributes such as
  * expiry event attributes, timeout ticks from now.
  * This function submits the event timer arm requests to the event timer adapter
  * and on expiry, the events will be injected to designated event queue.

lib/rawdev/rte_rawdev_pmd.h

@@ -506,7 +506,7 @@ typedef int (*rawdev_firmware_version_get_t)(struct rte_rawdev *dev,
  *   >0, ~0: for successful load
  *   <0: for failure
  *
- * @see Application may use 'firmware_version_get` for ascertaining successful
+ * @see Application may use `firmware_version_get` for ascertaining successful
  * load
  */
 typedef int (*rawdev_firmware_load_t)(struct rte_rawdev *dev,