powerpc/xsysace: add compatible string for non-ipcore instance

Add "xlnx,sysace" compatible string to the of_platform binding
table.  Platforms which have the SysACE chip on board (e.g.
Katmai) instead of via a Xilinx generated IP core will use
this value in their device tree.
Signed-off-by: NYuri Tikhonov <yur@emcraft.com>
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>

drivers/block/xsysace.c

@@ -1206,6 +1206,7 @@ static struct of_device_id ace_of_match[] __devinitdata = {
 	{ .compatible = "xlnx,opb-sysace-1.00.b", },
 	{ .compatible = "xlnx,opb-sysace-1.00.c", },
 	{ .compatible = "xlnx,xps-sysace-1.00.a", },
+	{ .compatible = "xlnx,sysace", },
 	{},
 };
 MODULE_DEVICE_TABLE(of, ace_of_match);