U-boot will reject the nodes with @ for the address since
commit:
79af75f777
This in turn will cause the failure to boot with OpenWrt
generated images.
So, to rectify that simply replace @ with -.
Signed-off-by: Daniel Golle <daniel@makrotopia.org>
(cover also newly added rootfs@1 and initrd@1 nodes)
Signed-off-by: Robert Marko <robert.marko@sartura.hr>