Patch merged into coreboot/master: b5669ba drivers/pc80/mc146818rtc: Reduce superfluous preprocessor use

the following patch was just integrated into master:
commit b5669ba57937f48ffe201395c3e3b1527c14d1fa
Author: Alexandru Gagniuc 
Date:   Fri Jan 30 00:07:12 2015 -0600

drivers/pc80/mc146818rtc: Reduce superfluous preprocessor use

cmos_init() had layers of preprocessor directives, which resulted in
    a complete mess. Refactor it to make use of the IS_ENABLED() macro.
    This improves readability significantly.

One of the changes is to remove in inline stub declaration of
    (get|set)_option. Although that provided the ability for the compiler
    to optimize out code when USE_OPTION_TABLE is not selected, there is
    no evidence that such savings are measureable.

Change-Id: I07f00084d809adbb55031b2079f71136ade3028e
    Signed-off-by: Alexandru Gagniuc 
    Reviewed-on: http://review.coreboot.org/8306
    Tested-by: build bot (Jenkins)
    Reviewed-by: Kyösti Mälkki

See http://review.coreboot.org/8306 for details.

-gerrit