tee: tee_get_drvdata(): fix description of return value

This patch fixes the description of tee_get_drvdata()'s return value.
It actually returns the driver_data pointer supplied to
tee_device_alloc() since the TEE subsystem was added to the kernel.

Fixes: 967c9cca2c ("tee: generic TEE subsystem")
Cc: Jens Wiklander <jens.wiklander@linaro.org>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>

drivers/tee/tee_core.c

@@ -1073,7 +1073,7 @@ EXPORT_SYMBOL_GPL(tee_device_unregister);
 /**
  * tee_get_drvdata() - Return driver_data pointer
  * @teedev:	Device containing the driver_data pointer
- * @returns the driver_data pointer supplied to tee_register().
+ * @returns the driver_data pointer supplied to tee_device_alloc().
  */
 void *tee_get_drvdata(struct tee_device *teedev)
 {