This patch provides a global cleanup barebox Kconfig files. This includes
replacing spaces to tabs, formatting in accordance format.
No functional changes.

Signed-off-by: Alexander Shiyan <shc_work@mail.ru>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

This will allow to have a generic code to create different bootstrap

As example
Barebox as TI Xloader
Barebox as AT91 Bootstrap

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>