For Seaboard, Ventana, and Cardhu, add DT property to tell the regulator
that it should provide the pm_power_off() implementation. This allows
"shutdown" to work.
Signed-off-by: Stephen Warren <swarren@nvidia.com>
                        reg = <0x34>;
                        interrupts = <0 86 0x4>;
 
+                       ti,system-power-controller;
+
                        #gpio-cells = <2>;
                        gpio-controller;
 
 
                        reg = <0x34>;
                        interrupts = <0 86 0x4>;
 
+                       ti,system-power-controller;
+
                        #gpio-cells = <2>;
                        gpio-controller;
 
 
                        #interrupt-cells = <2>;
                        interrupt-controller;
 
+                       ti,system-power-controller;
+
                        #gpio-cells = <2>;
                        gpio-controller;