Add and enable RTC-backed boot counter on ABB SECU1 platform.
Signed-off-by: NMarek Vasut <marex@denx.de>
Cc: Ley Foon Tan <ley.foon.tan@intel.com>
Cc: Simon Goldschmidt <simon.k.r.goldschmidt@gmail.com>
Reviewed-by: NLey Foon Tan <ley.foon.tan@intel.com>