zy1000: keep up with changes to command structure

Add missing COMMAND_REGISTRATION_DONE.

For now the command syntax for zy1000 needs to be compatible
across 0.3/0.4, the world outside OpenOCD interfaces to
zy1000 using the old syntax. Post 0.4 release(0.4.1 even)
I'll switch to subcommand scheme.

Switch to subcommands post 0.3 lifecycle.

Signed-off-by: Øyvind Harboe <oyvind.harboe@zylin.com>

src/jtag/zy1000/zy1000.c

@@ -803,6 +803,7 @@ static const struct command_registration zy1000_commands[] = {
 		.help = "writes firmware to flash",
 	},
 #endif
+	COMMAND_REGISTRATION_DONE
 };