util/cbfstool/.gitignore: Add ifittool

Change-Id: Ie0ee6511e91c0bf1ff2f4ca49b24e3e5a36a06f2
Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/48005
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net>
Reviewed-by: Nico Huber <nico.h@gmx.de>
Reviewed-by:  Felix Singer <felixsinger@posteo.net>
diff --git a/util/cbfstool/.gitignore b/util/cbfstool/.gitignore
index 560d7ea..a63222a 100644
--- a/util/cbfstool/.gitignore
+++ b/util/cbfstool/.gitignore
@@ -1,5 +1,6 @@
 cbfs-compression-tool
 cbfstool
 fmaptool
+ifittool
 ifwitool
 rmodtool