ARM: ux500: Allow PRCMU regulator to be probed during a DT enabled boot

This patch adds the correct compatible string for use during Device Tree
population. Without it the DB8500 PRCMU regulators would be processed
when DT is enabled.
Acked-by: NLinus Walleij <linus.walleij@linaro.org>
Signed-off-by: NLee Jones <lee.jones@linaro.org>
Signed-off-by: NArnd Bergmann <arnd@arndb.de>

arch/arm/mach-ux500/board-mop500.c

@@ -845,6 +845,7 @@ static const struct of_device_id u8500_local_bus_nodes[] = {
 	/* only create devices below soc node */
 	{ .compatible = "stericsson,db8500", },
 	{ .compatible = "stericsson,db8500-prcmu", },
+	{ .compatible = "stericsson,db8500-prcmu-regulator", },
 	{ .compatible = "stericsson,ab8500", },
 	{ .compatible = "stericsson,ab8500-regulator", },
 	{ .compatible = "simple-bus"},