[coreboot-gerrit] Patch merged into coreboot/master: pcf8523: Fix wrong initialization of several registers

the following patch was just integrated into master:
commit f1f322b1a883e3d50a1907e29b5aa333a0f795a8
Author: Werner Zeh 
Date:   Tue Dec 13 08:03:10 2016 +0100

pcf8523: Fix wrong initialization of several registers

In the case where the RTC is initialized after the battery is
    completely drained the bits for power_mode and cof_selection are set up
    with wrongly applied masks.
    In the case where the RTC is re-initialized again with no power-loss
    after the last initialization the bits for cap_sel, power_mode and
    cof_selection are not shifted to the right position.

Both errors lead to a wrong initialization of the RTC and in turn to a
    way larger current consumption (instead of 120 nA the RTC current rises
    to over 2 µA).

This patch fixes both errors and the current consumption is in the right
    range again.

TEST=booted mc_bdx1 and verified current consumption of RTC

Change-Id: I8594f6ac121a175844393952db2169dbc5cbd2b2
    Signed-off-by: Werner Zeh 
    Reviewed-on: https://review.coreboot.org/17829
    Tested-by: build bot (Jenkins)
    Reviewed-by: Paul Menzel 
    Reviewed-by: Martin Roth

See https://review.coreboot.org/17829 for details.

-gerrit