stoneyridge: Rename hudson to southbridge

Simplify funciton names and remove reference to hudson in stoneyridge.
The southbridge in Stoney Ridge is Kern and hudson naming is
no longer accurate.

BUG=b:62200157
BRANCH=none
TEST=Build and booted on Kahlee.

Change-Id: Ide7a72dae69b881997101f1e37a1ac739901744d
Signed-off-by: Marc Jones <marcj303@gmail.com>
Reviewed-on: https://review.coreboot.org/20912
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
diff --git a/src/soc/amd/stoneyridge/chip.c b/src/soc/amd/stoneyridge/chip.c
index 2af466b..3641706 100644
--- a/src/soc/amd/stoneyridge/chip.c
+++ b/src/soc/amd/stoneyridge/chip.c
@@ -18,7 +18,7 @@
 #include <cpu/cpu.h>
 #include <device/device.h>
 #include <device/pci.h>
-#include <soc/hudson.h>
+#include <soc/southbridge.h>
 #include <soc/northbridge.h>
 
 static void cpu_bus_init(device_t dev)
@@ -58,17 +58,17 @@
 	else if (dev->path.type == DEVICE_PATH_CPU_CLUSTER)
 		dev->ops = &cpu_bus_ops;
 	else if (dev->path.type == DEVICE_PATH_PCI)
-		hudson_enable(dev);
+		sb_enable(dev);
 }
 
 static void soc_init(void *chip_info)
 {
-	hudson_init(chip_info);
+	southbridge_init(chip_info);
 }
 
 static void soc_final(void *chip_info)
 {
-	hudson_final(chip_info);
+	southbridge_final(chip_info);
 	fam15_finalize(chip_info);
 }