soc/intel/braswell: Get rid of device_t

Use of device_t has been abandoned in ramstage.

Change-Id: I05a46ab0ae6b4493895c1231fedb59c96efdf793
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/26457
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Kyösti Mälkki <kyosti.malkki@gmail.com>

src/soc/intel/braswell/sd.c

@@ -31,7 +31,7 @@
 #define CAP_OVERRIDE_HIGH 0xa4
 # define USE_CAP_OVERRIDES (1 << 31)
 
-static void sd_init(device_t dev)
+static void sd_init(struct device *dev)
 {
 	struct soc_intel_braswell_config *config = dev->chip_info;