soc/mediatek/mt8173: Get rid of device_t

Use of device_t has been abandoned in ramstage.

Change-Id: Ifadb894f98ce60cf0778de7fbcec67d125e48fd6
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26538
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
diff --git a/src/soc/mediatek/mt8173/soc.c b/src/soc/mediatek/mt8173/soc.c
index 686f973..c28eb05 100644
--- a/src/soc/mediatek/mt8173/soc.c
+++ b/src/soc/mediatek/mt8173/soc.c
@@ -19,12 +19,12 @@
 #include <symbols.h>
 #include <soc/emi.h>
 
-static void soc_read_resources(device_t dev)
+static void soc_read_resources(struct device *dev)
 {
 	ram_resource(dev, 0, (uintptr_t)_dram / KiB, sdram_size() / KiB);
 }
 
-static void soc_init(device_t dev)
+static void soc_init(struct device *dev)
 {
 }
 
@@ -33,7 +33,7 @@
 	.init = soc_init,
 };
 
-static void enable_soc_dev(device_t dev)
+static void enable_soc_dev(struct device *dev)
 {
 	dev->ops = &soc_ops;
 }