esp32_oneshot_lowerhalf.c: Use the same alignment as the rest of the

code base.

Signed-off-by: Abdelatif Guettouche <abdelatif.guettouche@espressif.com>

arch/xtensa/src/esp32/esp32_oneshot_lowerhalf.c

@@ -60,7 +60,7 @@ struct esp32_oneshot_lowerhalf_s
   struct esp32_oneshot_s      oneshot;    /* ESP32-specific oneshot state */
   oneshot_callback_t          callback;   /* Upper half Interrupt callback */
   void                        *arg;       /* Argument passed to handler */
-  uint16_t                  resolution;
+  uint16_t                    resolution; /* Timer's resulation in uS */
   spinlock_t                  lock;       /* Device specific lock */
 };