ARM64: zynqmp: Wire up PSCI reset

Using PSCI to reset the system.

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

board/xilinx/zynqmp/zynqmp.c

@@ -307,3 +307,8 @@ int board_usb_cleanup(int index, enum usb_init_type init)
 	return 0;
 }
 #endif
+
+void reset_misc(void)
+{
+	psci_system_reset(true);
+}