EC ACPI code is calculating the drain rate, but does not store it in the battery status package before returning it. Correct this omission, and set the drain rate to a preset minimum if calculated value is less. Taken from vendor firmware ACPI dump. Change-Id: I52837d5879112ab3103976bda28906fac8f880ec Signed-off-by: Matt DeVillier <matt.devillier@gmail.com> Reviewed-on: https://review.coreboot.org/21545 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Martin Roth <martinroth@google.com> Reviewed-by: Youness Alaoui <snifikino@gmail.com>