I noticed that u-boot lives in meta/recipes-bsp/uboot as the name of the package is u-boot it is (slightly) better to rename the dir from uboot to u-boot
Frans, would you care to send a patch?
Created attachment 290 [details] proposed patch Attached is a proposed patch. Not sure on for what tree to submit the patch. This one is against oe-core, not against the poky/yocto git patch has also been mailed to the oe-core mailing list.
Fix merged in revision 3994ad0c34b773b4887f1e6396ef86218a0e5c60 (OE-core rev e9899d52ade2181bd97dcf79bec64650e8b0f718).