soc/intel/skylake: Enable SDXC depending on devicetree configuration

Currently, SDXC gets enabled by the option ScsSdCardEnabled,
but this duplicates the devicetree on/off options. Therefore, depend on
the devicetree for the enablement of the SDXC controller.

All corresponding mainboards were checked if the devicetree
configuration matches the ScsSdCardEnabled setting, and missing
entries were added.

Change-Id: I298b7d0b0fe2a7346dbadcea4be22dc67fce4de8
Signed-off-by: Felix Singer <felixsinger@posteo.net>
---
M src/mainboard/51nb/x210/devicetree.cb
M src/mainboard/google/eve/devicetree.cb
M src/mainboard/google/fizz/variants/baseboard/devicetree.cb
M src/mainboard/google/glados/devicetree.cb
M src/mainboard/google/glados/variants/caroline/overridetree.cb
M src/mainboard/google/glados/variants/cave/overridetree.cb
M src/mainboard/google/glados/variants/glados/overridetree.cb
M src/mainboard/google/glados/variants/sentry/overridetree.cb
M src/mainboard/google/poppy/variants/atlas/devicetree.cb
M src/mainboard/google/poppy/variants/baseboard/devicetree.cb
M src/mainboard/google/poppy/variants/nami/devicetree.cb
M src/mainboard/google/poppy/variants/nautilus/devicetree.cb
M src/mainboard/google/poppy/variants/nocturne/devicetree.cb
M src/mainboard/google/poppy/variants/rammus/devicetree.cb
M src/mainboard/google/poppy/variants/soraka/devicetree.cb
M src/mainboard/intel/kblrvp/variants/baseboard/devicetree.cb
M src/mainboard/intel/kblrvp/variants/rvp11/overridetree.cb
M src/mainboard/intel/kblrvp/variants/rvp8/overridetree.cb
M src/mainboard/intel/kunimitsu/devicetree.cb
M src/mainboard/intel/saddlebrook/devicetree.cb
M src/mainboard/libretrend/lt1000/devicetree.cb
M src/mainboard/protectli/vault_kbl/devicetree.cb
M src/mainboard/purism/librem_skl/devicetree.cb
M src/mainboard/razer/blade_stealth_kbl/devicetree.cb
M src/mainboard/supermicro/x11-lga1151-series/devicetree.cb
M src/soc/intel/skylake/chip.c
M src/soc/intel/skylake/chip.h
27 files changed, 9 insertions(+), 31 deletions(-)