This ports the following barebox commit:

| commit 70ea799
| Author: Sascha Hauer <s.hauer@pengutronix.de>
| Date:   Thu May 4 12:50:59 2017 +0200
|
|     state: Create alias in of_state_fixup()
|
|     When the kernel device tree is fixed up we assume that it doesn't
|     have a state node, so we must also assume that it doesn't have
|     a alias. Create it.
|
|     Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

Signed-off-by: Ulrich Ölmann <u.oelmann@pengutronix.de>
Signed-off-by: Roland Hieber <rhi@pengutronix.de>