efi: Drop unnecessary calls to blk_find_device()

When we have the block descriptor we can simply access the device. Drop
the unnecessary function call.

Signed-off-by: Simon Glass <sjg@chromium.org>
Reviewed-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
diff --git a/lib/efi_loader/efi_device_path.c b/lib/efi_loader/efi_device_path.c
index 75ab4de..dc787b4 100644
--- a/lib/efi_loader/efi_device_path.c
+++ b/lib/efi_loader/efi_device_path.c
@@ -769,13 +769,8 @@
 static unsigned dp_part_size(struct blk_desc *desc, int part)
 {
 	unsigned dpsize;
-	struct udevice *dev;
-	int ret;
+	struct udevice *dev = desc->bdev;
 
-	ret = blk_find_device(desc->if_type, desc->devnum, &dev);
-
-	if (ret)
-		dev = desc->bdev->parent;
 	dpsize = dp_size(dev);
 
 	if (part == 0) /* the actual disk, not a partition */
@@ -866,13 +861,8 @@
  */
 static void *dp_part_fill(void *buf, struct blk_desc *desc, int part)
 {
-	struct udevice *dev;
-	int ret;
-
-	ret = blk_find_device(desc->if_type, desc->devnum, &dev);
+	struct udevice *dev = desc->bdev;
 
-	if (ret)
-		dev = desc->bdev->parent;
 	buf = dp_fill(buf, dev);
 
 	if (part == 0) /* the actual disk, not a partition */