blk: Rename if_type to uclass_id

Use the word 'uclass' instead of 'if_type' to complete the conversion.

Signed-off-by: Simon Glass <sjg@chromium.org>
diff --git a/common/spl/spl_usb.c b/common/spl/spl_usb.c
index 63c00f8..479e2dc 100644
--- a/common/spl/spl_usb.c
+++ b/common/spl/spl_usb.c
@@ -41,7 +41,7 @@
 
 	/* try to recognize storage devices immediately */
 	usb_stor_curr_dev = usb_stor_scan(1);
-	stor_dev = blk_get_devnum_by_type(UCLASS_USB, usb_stor_curr_dev);
+	stor_dev = blk_get_devnum_by_uclass_id(UCLASS_USB, usb_stor_curr_dev);
 	if (!stor_dev)
 		return -ENODEV;