fbdev: sh_mobile_hdmi: add HDMI Control Register support

Latest SuperH HDMI uses not only HDMI Core Register (HTOP0)
but also HDMI Control Register (HTOP1).
This patch adds HDMI Control Register support.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>

include/video/sh_mobile_hdmi.h

@@ -38,6 +38,7 @@ struct clk;
 
 /* Chip specific option */
 #define HDMI_32BIT_REG		(1 << 8)
+#define HDMI_HAS_HTOP1		(1 << 9)
 
 struct sh_mobile_hdmi_info {
 	unsigned int			 flags;