OMAP3: voltagedomain data: add wakeup domain

Add wakeup voltage domain so that the wakeup powerdomain can have an
associated powerdomain.  Note that the scalable flat is not set for
the this voltagedomain, so it will not be fully initialized like
scalable voltage domains.
Signed-off-by: Kevin Hilman <khilman@ti.com>

arch/arm/mach-omap2/voltagedomains3xxx_data.c

@@ -69,9 +69,14 @@ static struct voltagedomain omap3_voltdm_core = {
 	.vdd = &omap3_vdd2_info,
 };
 
+static struct voltagedomain omap3_voltdm_wkup = {
+	.name = "wakeup",
+};
+
 static struct voltagedomain *voltagedomains_omap3[] __initdata = {
 	&omap3_voltdm_mpu,
 	&omap3_voltdm_core,
+	&omap3_voltdm_wkup,
 	NULL,
 };