acpi: Use I2cSerialBusV2() instead of I2cSerialBus()

Use the correct name of the ACPI structure being created.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/include/acpi/acpi_device.h b/include/acpi/acpi_device.h
index 007b7e7..ed4acd9 100644
--- a/include/acpi/acpi_device.h
+++ b/include/acpi/acpi_device.h
@@ -413,7 +413,7 @@
 /**
  * acpi_device_write_i2c_dev() - Write an I2C device to ACPI
  *
- * This creates a I2cSerialBus descriptor for an I2C device, including
+ * This creates a I2cSerialBusV2 descriptor for an I2C device, including
  * information ACPI needs to use it.
  *
  * @ctx: ACPI context pointer