device/device.h: Rename busses for clarity

This renames bus to upstream and link_list to downstream.

Signed-off-by: Arthur Heymans <arthur@aheymans.xyz>
Change-Id: I80a81b6b8606e450ff180add9439481ec28c2420
Reviewed-on: https://review.coreboot.org/c/coreboot/+/78330
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Felix Held <felix-coreboot@felixheld.de>
diff --git a/src/cpu/intel/model_2065x/model_2065x_init.c b/src/cpu/intel/model_2065x/model_2065x_init.c
index 3497ae0..cb74854 100644
--- a/src/cpu/intel/model_2065x/model_2065x_init.c
+++ b/src/cpu/intel/model_2065x/model_2065x_init.c
@@ -22,7 +22,7 @@
 
 static void configure_thermal_target(struct device *dev)
 {
-	struct cpu_intel_model_2065x_config *conf = dev->bus->dev->chip_info;
+	struct cpu_intel_model_2065x_config *conf = dev->upstream->dev->chip_info;
 	msr_t msr;
 
 	/* Set TCC activation offset if supported */