ARM: Kirkwood: Convert to EHCI via DT for OpenBlocks A6

EHCI driver enables by default in kirkwood.dtsi.
This removes kirkwood_ehci_init function.
Signed-off-by: Nobuhiro Iwamatsu <iwamatsu@nigauri.org>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

arch/arm/mach-kirkwood/board-openblocks_a6.c

@@ -66,6 +66,5 @@ void __init openblocks_a6_init(void)
 	 * Basic setup. Needs to be called early.
 	 */
 	kirkwood_mpp_conf(openblocks_a6_mpp_config);
-	kirkwood_ehci_init();
 	kirkwood_ge00_init(&openblocks_ge00_data);
 }