boards/esp32s3: Add RTC initialization

boards/xtensa/esp32s3/esp32s3-devkit/src/esp32s3_bringup.c

@@ -62,6 +62,10 @@
 #  include <nuttx/input/buttons.h>
 #endif
 
+#ifdef CONFIG_RTC_DRIVER
+#  include "esp32s3_rtc_lowerhalf.h"
+#endif
+
 #ifdef CONFIG_VIDEO_FB
 #include <nuttx/video/fb.h>
 #endif
@@ -153,6 +157,17 @@ int esp32s3_bringup(void)
     }
 #endif
 
+#ifdef CONFIG_RTC_DRIVER
+  /* Instantiate the ESP32-S3 RTC driver */
+
+  ret = esp32s3_rtc_driverinit();
+  if (ret < 0)
+    {
+      syslog(LOG_ERR,
+             "ERROR: Failed to Instantiate the RTC driver: %d\n", ret);
+    }
+#endif
+
 #ifdef CONFIG_WATCHDOG
   /* Configure watchdog timer */