uniphier: make UART base address configurable

The next SoC supports the same UART, but the register base will be
changed. Make it configurable.

Change-Id: Ida5c9151b2f3554afd15555b22838437eef443f7
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/plat/socionext/uniphier/uniphier.h b/plat/socionext/uniphier/uniphier.h
index 808b850..f8aa65a 100644
--- a/plat/socionext/uniphier/uniphier.h
+++ b/plat/socionext/uniphier/uniphier.h
@@ -35,7 +35,7 @@
 #define UNIPHIER_BOOT_MASTER_SCP	1
 #define UNIPHIER_BOOT_MASTER_EXT	2
 
-void uniphier_console_setup(void);
+void uniphier_console_setup(unsigned int soc);
 
 struct io_block_dev_spec;
 int uniphier_emmc_init(unsigned int soc,