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/acpi.c b/src/soc/amd/stoneyridge/acpi.c
index 54af59b..9ebe8de 100644
--- a/src/soc/amd/stoneyridge/acpi.c
+++ b/src/soc/amd/stoneyridge/acpi.c
@@ -27,7 +27,7 @@
 #include <cbmem.h>
 #include <device/device.h>
 #include <soc/acpi.h>
-#include <soc/hudson.h>
+#include <soc/southbridge.h>
 #include <soc/nvs.h>
 #include <soc/smi.h>
 
@@ -84,7 +84,7 @@
 	fadt->dsdt = (u32) dsdt;
 	fadt->model = 0;		/* reserved, should be 0 ACPI 3.0 */
 	fadt->preferred_pm_profile = FADT_PM_PROFILE;
-	fadt->sci_int = 9;		/* HUDSON - IRQ 09 - ACPI SCI */
+	fadt->sci_int = 9;		/* IRQ 09 - ACPI SCI */
 
 	if (IS_ENABLED(CONFIG_HAVE_SMI_HANDLER)) {
 		fadt->smi_cmd = ACPI_SMI_CTL_PORT;
@@ -111,7 +111,7 @@
 	fadt->pm2_cnt_blk = 0x0000;
 	fadt->pm_tmr_blk = ACPI_PM_TMR_BLK;
 	fadt->gpe0_blk = ACPI_GPE0_BLK;
-	fadt->gpe1_blk = 0x0000;		/* No gpe1 block in hudson */
+	fadt->gpe1_blk = 0x0000;		/* No gpe1 block  */
 
 	fadt->pm1_evt_len = 4;	/* 32 bits */
 	fadt->pm1_cnt_len = 2;	/* 16 bits */