serial: sh: Add r8a7796 support

Signed-off-by: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Hiroyuki Yokoyama <hiroyuki.yokoyama.vx@renesas.com>
Cc: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/drivers/serial/serial_sh.h b/drivers/serial/serial_sh.h
index 348f544..4d27122 100644
--- a/drivers/serial/serial_sh.h
+++ b/drivers/serial/serial_sh.h
@@ -226,7 +226,8 @@
 # define SCSCR_INIT(port)	0x38	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 #elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791) || \
 	defined(CONFIG_R8A7792) || defined(CONFIG_R8A7793) || \
-	defined(CONFIG_R8A7794) || defined(CONFIG_R8A7795)
+	defined(CONFIG_R8A7794) || defined(CONFIG_R8A7795) || \
+	defined(CONFIG_R8A7796)
 # if defined(CONFIG_SCIF_A)
 #  define SCIF_ORER	0x0200
 # else