serial: sh: Add SCIFA0 address entry

Add the SCIFA0 address entry so it can be used in TPL if needed
due to size restrictions.

Signed-off-by: Marek Vasut <marek.vasut+renesas@gmail.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index a17698f..5f4ace7 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -270,6 +270,8 @@
 # define SCIF_BASE	SCIF6_BASE
 #elif defined(CONFIG_CONS_SCIF7)
 # define SCIF_BASE	SCIF7_BASE
+#elif defined(CONFIG_CONS_SCIFA0)
+# define SCIF_BASE	SCIFA0_BASE
 #else
 # error "Default SCIF doesn't set....."
 #endif