ARM: OMAP: debug-leds: Use resource_size instead of hard coded macro

The debug-leds driver should not rely on hard coded macro for
the iomem size but use the resource size instead.
Signed-off-by: NBenoit Cousson <b-cousson@ti.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/plat-omap/debug-leds.c

@@ -111,7 +111,7 @@ static int fpga_probe(struct platform_device *pdev)
 	if (!iomem)
 		return -ENODEV;
 
-	fpga = ioremap(iomem->start, H2P2_DBG_FPGA_SIZE);
+	fpga = ioremap(iomem->start, resource_size(iomem));
 	__raw_writew(0xff, &fpga->leds);
 
 	for (i = 0; i < ARRAY_SIZE(dbg_leds); i++) {