Exynos: Only compile UART in if serial console is selected

Change-Id: I5cddffc2e524aae7a31a8f94f67e03a5b7e15c82
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>
Signed-off-by: Gabe Black <gabeblack@chromium.org>
Reviewed-on: http://review.coreboot.org/3695
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/cpu/samsung/exynos5420/Makefile.inc b/src/cpu/samsung/exynos5420/Makefile.inc
index 1dddd21..6f9b91b 100644
--- a/src/cpu/samsung/exynos5420/Makefile.inc
+++ b/src/cpu/samsung/exynos5420/Makefile.inc
@@ -9,7 +9,9 @@
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock_init.c
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += clock.c
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += monotonic_timer.c
+ifeq ($(CONFIG_CONSOLE_SERIAL_UART),y)
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += uart.c
+endif
 bootblock-y += wakeup.c
 bootblock-y += gpio.c
 bootblock-$(CONFIG_BOOTBLOCK_CONSOLE) += pwm.c
@@ -24,7 +26,9 @@
 romstage-y += power.c
 romstage-y += mct.c
 romstage-y += monotonic_timer.c
+ifeq ($(CONFIG_CONSOLE_SERIAL_UART),y)
 romstage-$(CONFIG_EARLY_CONSOLE) += uart.c
+endif
 romstage-y += wakeup.c
 romstage-y += pwm.c	# needed by timer.c
 romstage-y += gpio.c