sh: sh4: Change the specification method of IRQ to SCIx_IRQ_MUXED

Some SCIF devices specify the same IRQ. We can use SCIx_IRQ_MUXED for this.
And change use to evt2irq(), without specifying the value of IRQ directly.
This is correction to the SH4 series.
Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>
Signed-off-by: Paul Mundt <lethal@linux-sh.org>

arch/sh/kernel/cpu/sh4/setup-sh7750.c

@@ -43,7 +43,7 @@ static struct plat_sci_port sci_platform_data = {
 	.scscr		= SCSCR_TE | SCSCR_RE,
 	.scbrr_algo_id	= SCBRR_ALGO_2,
 	.type		= PORT_SCI,
-	.irqs		= { 23, 23, 23, 0 },
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0xE40)),
 	.regshift	= 2,
 };
 
@@ -61,7 +61,7 @@ static struct plat_sci_port scif_platform_data = {
 	.scscr		= SCSCR_TE | SCSCR_RE | SCSCR_REIE,
 	.scbrr_algo_id	= SCBRR_ALGO_2,
 	.type		= PORT_SCIF,
-	.irqs		= { 40, 40, 40, 40 },
+	.irqs		= SCIx_IRQ_MUXED(evt2irq(0x700)),
 };
 
 static struct platform_device scif_device = {