soc/amd/stoneyridge: Get rid of device_t

Use of device_t is deprecated.

Change-Id: I6d6dce29591f134f64983387c3b268019d52a602
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/c/30044
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/soc/amd/stoneyridge/southbridge.c b/src/soc/amd/stoneyridge/southbridge.c
index 5aea825..f56123c 100644
--- a/src/soc/amd/stoneyridge/southbridge.c
+++ b/src/soc/amd/stoneyridge/southbridge.c
@@ -700,7 +700,7 @@
 	sb_print_pmxc0_status();
 }
 
-void sb_enable(device_t dev)
+void sb_enable(struct device *dev)
 {
 	printk(BIOS_DEBUG, "%s\n", __func__);
 }