grub2-tools: new package

Support tools to interact with GNU GRUB Multiboot boot loader.

In the context of Buildroot, some useful target tools provided by
grub2-tools are grub2-editenv, grub2-reboot, which provide means to
manage the Grub 2 environment, boot order, and others.

This package is also meant as a preparation step to be turned into a
host-package later and help decouple the target and host portions of the
actual Grub 2 boot loader package.

Signed-off-by: Erico Nunes <nunes.erico@gmail.com>
Cc: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>

Downloaded from: https://patchwork.ozlabs.org/patch/755651/
Reviewed-by: Miroslav Mareš <mmares@cesnet.cz>

Change-Id: Ic91591b584c832c936b49af76f1f56fd7c6cf5ad
diff --git a/package/Config.in b/package/Config.in
index 24c14d9..5b9950d 100644
--- a/package/Config.in
+++ b/package/Config.in
@@ -1,2 +1,3 @@
 source "$BR2_EXTERNAL_CZECHLIGHT_PATH/package/cla-sysrepo/Config.in"
 source "$BR2_EXTERNAL_CZECHLIGHT_PATH/package/czechlight-cfg-fs/Config.in"
+source "$BR2_EXTERNAL_CZECHLIGHT_PATH/package/grub2-tools/Config.in"