util/liveiso: Install mtdutils

Change-Id: I1416d8f783518eca0606efef4314a3d86837b016
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/60376
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner <foss@mniewoehner.de>
diff --git a/util/liveiso/common.nix b/util/liveiso/common.nix
index d0b7ba6..fefbe81 100644
--- a/util/liveiso/common.nix
+++ b/util/liveiso/common.nix
@@ -138,6 +138,7 @@
 		mkpasswd
 		ms-sys
 		msr-tools
+		mtdutils
 		neovim
 		nixos-install-tools
 		ntfsprogs