drivers: i3c: stm32: add api call for default handler

add api calls for the default handlers for i3c rtio

(cherry picked from commit f888e78)

Original-Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
GitOrigin-RevId: f888e78
Cr-Build-Id: 8728310571250663457
Cr-Build-Url: https://cr-buildbucket.appspot.com/build/8728310571250663457
Copybot-Job-Name: zephyr-main-copybot-downstream
Change-Id: I277887b2a00aca8a575ceed9f0d72d0a5a902326
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/zephyr/+/6101981
Tested-by: ChromeOS Prod (Robot) <chromeos-ci-prod@chromeos-bot.iam.gserviceaccount.com>
Reviewed-by: Dawid Niedźwiecki <dawidn@google.com>
Commit-Queue: Dawid Niedźwiecki <dawidn@google.com>
Tested-by: Dawid Niedźwiecki <dawidn@google.com>

drivers/i3c/i3c_stm32.c

@@ -2058,6 +2058,9 @@ static void i3c_stm32_dma_rs_cb(const struct device *dma_dev, void *user_data, u
 static DEVICE_API(i3c, i3c_stm32_driver_api) = {
 	.i2c_api.configure = i3c_stm32_i2c_configure,
 	.i2c_api.transfer = i3c_stm32_i2c_transfer,
+#ifdef CONFIG_I2C_RTIO
+	.i2c_api.iodev_submit = i2c_iodev_submit_fallback,
+#endif
 	.configure = i3c_stm32_configure,
 	.config_get = i3c_stm32_config_get,
 	.i3c_device_find = i3c_stm32_device_find,
@@ -2068,6 +2071,9 @@ static DEVICE_API(i3c, i3c_stm32_driver_api) = {
 	.ibi_enable = i3c_stm32_ibi_enable,
 	.ibi_disable = i3c_stm32_ibi_disable,
 #endif
+#ifdef CONFIG_I3C_RTIO
+	.iodev_submit = i3c_iodev_submit_fallback,
+#endif
 };
 
 #ifdef CONFIG_I3C_STM32_DMA