efi_loader: provide a sufficient number of protocols

Four protocols per object is too few to run iPXE.

Let's raise the number of protocols per object to eight.

Signed-off-by: Heinrich Schuchardt <xypron.glpk@gmx.de>
Signed-off-by: Alexander Graf <agraf@suse.de>
diff --git a/include/efi_loader.h b/include/efi_loader.h
index c620652..989e580 100644
--- a/include/efi_loader.h
+++ b/include/efi_loader.h
@@ -65,8 +65,8 @@
 struct efi_object {
 	/* Every UEFI object is part of a global object list */
 	struct list_head link;
-	/* We support up to 4 "protocols" an object can be accessed through */
-	struct efi_handler protocols[4];
+	/* We support up to 8 "protocols" an object can be accessed through */
+	struct efi_handler protocols[8];
 	/* The object spawner can either use this for data or as identifier */
 	void *handle;
 };