fdtdec: Fix possible infinite loop in fdtdec_get_pci_vendev()

When there is no valid compatible string in current list,
we should advance to next one in the compatible string list.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Acked-by: Simon Glass <sjg@chromium.org>

lib/fdtdec.c

@@ -207,9 +207,8 @@ int fdtdec_get_pci_vendev(const void *blob, int node, u16 *vendor, u16 *device)
 
 				return 0;
 			}
-		} else {
-			list += (len + 1);
 		}
+		list += (len + 1);
 	}
 
 	return -ENOENT;