soc/intel/quark/uart.c: Don't use device_t

Use of device_t is deprecated.

Change-Id: Ia50aa96901b979b947fd4d269b077814c06f60c6
Signed-off-by: Elyes HAOUAS <ehaouas@noos.fr>
Reviewed-on: https://review.coreboot.org/28677
Reviewed-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>

src/soc/intel/quark/uart.c

@@ -21,7 +21,7 @@
 #include <device/pci_ids.h>
 #include <soc/pci_devs.h>
 
-static void uart_read_resources(device_t dev)
+static void uart_read_resources(struct device *dev)
 {
 	struct resource *res;