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

Currently SATA gets enabled by the option EnableSata, but this
duplicates the devicetree on/off options. Therefore use the on/off
options for the enablement of the SATA controller.

I checked all corresponding mainboards if the devicetree configuration
matches the EnableSata setting.

Change-Id: I217dcb7178f29bbdeada54bdb774166126b47a5a
Signed-off-by: Felix Singer <felixsinger@posteo.net>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/43843
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Michael Niewöhner
diff --git a/src/soc/intel/skylake/chip.c b/src/soc/intel/skylake/chip.c
index f14a163..3a9dd5c 100644
--- a/src/soc/intel/skylake/chip.c
+++ b/src/soc/intel/skylake/chip.c
@@ -166,8 +166,9 @@
 		}
 	}
 
-	params->SataEnable = config->EnableSata;
-	if (config->EnableSata) {
+	dev = pcidev_path_on_root(PCH_DEVFN_SATA);
+	params->SataEnable = dev ? dev->enabled : 0;
+	if (params->SataEnable) {
 		memcpy(params->SataPortsEnable, config->SataPortsEnable,
 				sizeof(params->SataPortsEnable));
 		memcpy(params->SataPortsDevSlp, config->SataPortsDevSlp,