armv7: Use same console initialization procedure for all ARM stages

Use same console initialization procedure for all ARM stages (bootblock,
romstage, and ramstage):

	#include <console/console.h>
	...
	console_init()
	...
	printk(level, format, ...)

Verified to boot on armv7/snow with console messages in all stages.

Change-Id: Idd689219035e67450ea133838a2ca02f8d74557e
Signed-off-by: Hung-Te Lin <hungte@chromium.org>
Signed-off-by: David Hendricks <dhendrix@chromium.org>
Reviewed-on: http://review.coreboot.org/2301
Tested-by: build bot (Jenkins)
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
diff --git a/src/include/uart.h b/src/include/uart.h
index e424496..ca5191e 100644
--- a/src/include/uart.h
+++ b/src/include/uart.h
@@ -30,14 +30,11 @@
 #include <uart8250.h>
 #endif
 
-#if CONFIG_CPU_SAMSUNG_EXYNOS5
-#include <cpu/samsung/exynos5-common/uart.h>
-#endif
-
 #if !defined(__ROMCC__) && CONFIG_CONSOLE_SERIAL_UART
 unsigned char uart_rx_byte(void);
 void uart_tx_byte(unsigned char data);
 void uart_tx_flush(void);
+void uart_init(void);
 #endif
 
 #endif /* UART_H */