serial_sh: add support for SH7753

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
diff --git a/drivers/serial/serial_sh.h b/drivers/serial/serial_sh.h
index 556b868..f5e9854 100644
--- a/drivers/serial/serial_sh.h
+++ b/drivers/serial/serial_sh.h
@@ -143,7 +143,9 @@
 #elif defined(CONFIG_H8S2678)
 # define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
 # define H8300_SCI_DR(ch) (*(volatile char *)(P1DR + h8300_sci_pins[ch].port))
-#elif defined(CONFIG_CPU_SH7757) || defined(CONFIG_CPU_SH7752)
+#elif defined(CONFIG_CPU_SH7757) || \
+	defined(CONFIG_CPU_SH7752) || \
+	defined(CONFIG_CPU_SH7753)
 # define SCSPTR0 0xfe4b0020
 # define SCSPTR1 0xfe4b0020
 # define SCSPTR2 0xfe4b0020