Fix following warning:
arch/arm/boards/karo-tx25/lowlevel.c: In function 'board_init_lowlevel':
arch/arm/boards/karo-tx25/lowlevel.c:75:6: warning: unused variable 'i'
Signed-off-by: Marek Belisko <marek.belisko@open-nandra.com>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>