soc/nvidia: Get rid of device_t

Use of device_t has been abandoned in ramstage.

Change-Id: I065ed3a0deab2f59e510717f5d52beb2a62e900d
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26537
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Rudolph <siro@das-labor.org>
diff --git a/src/soc/nvidia/tegra210/soc.c b/src/soc/nvidia/tegra210/soc.c
index 1071d68..a8f111b 100644
--- a/src/soc/nvidia/tegra210/soc.c
+++ b/src/soc/nvidia/tegra210/soc.c
@@ -35,7 +35,7 @@
 
 #include "chip.h"
 
-static void soc_read_resources(device_t dev)
+static void soc_read_resources(struct device *dev)
 {
 	unsigned long index = 0;
 	int i; uintptr_t begin, end;
@@ -65,7 +65,7 @@
 	.scan_bus         = NULL,
 };
 
-static void enable_tegra210_dev(device_t dev)
+static void enable_tegra210_dev(struct device *dev)
 {
 	if (dev->path.type == DEVICE_PATH_CPU_CLUSTER)
 		dev->ops = &soc_ops;