tee: add start argument to shm_register callback

Adds a start argument to the shm_register callback to allow the callback
to check memory type of the passed pages.

Signed-off-by: Jens Wiklander <jens.wiklander@linaro.org>
diff --git a/drivers/tee/tee_shm.c b/drivers/tee/tee_shm.c
index 04e1b8b37..6a17b02 100644
--- a/drivers/tee/tee_shm.c
+++ b/drivers/tee/tee_shm.c
@@ -299,7 +299,7 @@ struct tee_shm *tee_shm_register(struct tee_context *ctx, unsigned long addr,
 	}
 
 	rc = teedev->desc->ops->shm_register(ctx, shm, shm->pages,
-					     shm->num_pages);
+					     shm->num_pages, start);
 	if (rc) {
 		ret = ERR_PTR(rc);
 		goto err;