Otherwise Checking combo_config[++combo_index] causes Out-of-Bounds access. Change-Id: I50d466ee98edfb18c01fc7ba43e929640b33c7c1 Signed-off-by: Zheng Bao <fishbaozi@gmail.com> Reviewed-on: https://review.coreboot.org/c/coreboot/+/73647 Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com> Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin L Roth <gaumless@gmail.com>