[meta-xilinx] Warrior release 06/30

[Manjukumar Harthikote Matha]

Hi All,

We plan to release warrior by end of month. 
We also want to see if we can backport patches of u-boot from Luca to enable cleaner SPL flow for PMU config objects.
If we cannot do it by 6/30, we want to make sure we can add it after the release branch is cut.
Please see: 
https://lucaceresoli.net/zynqmp-uboot-spl-pmufw-cfg-load/
or
https://www.linkedin.com/pulse/booting-u-boot-spl-zynqmp-step-forward-luca-ceresoli/


We will start posting the patches to master branch soon which will be a part of Warrior (v2.7).

Thanks,
Manju