master branch is incompatible with scarthgap

[shahimvedaei]

Scarthgap is a LTS version; however, I did not find a dedicated Tag for this version. Hence, I used the master branch in which looks like it should be compatible with scarthgap.

conf/layer.conf
LAYERSERIES_COMPAT_odroid-layer = "nanbield scarthgap styhead"

But It get the folllowing error.

Sstate summary: Wanted 1125 Local 0 Mirrors 0 Missed 1125 Current 624 (0% match, 35% complete)####################################################################################                  | ETA:  0:00:00
Initialising tasks: 100% |##########################################################################################################################################################################| Time: 0:00:02
NOTE: Executing Tasks
ERROR: u-boot-1_2024.01-r0 do_compile: UNPACKDIR not defined, unable to package
ERROR: u-boot-1_2024.01-r0 do_compile: Unable to open ${UNPACKDIR}/boot.cmd
ERROR: Logfile of failure stored in: /home/user/poky/build/tmp/work/odroid_xu4-poky-linux-gnueabi/u-boot/2024.01/temp/log.do_compile.3013
ERROR: Task (/home/user/poky/meta/recipes-bsp/u-boot/u-boot_2024.01.bb:do_compile) failed with exit code '1'
NOTE: Tasks Summary: Attempted 2083 tasks of which 1868 didn't need to be rerun and 1 failed.

Summary: 1 task failed:

As of new requirement for Styhead, the WORKDIR is replaced with UNPACKDIR. However, this change leads to an error for Scarthgap.

Kindly, create a new Tag/Branch for Scarthgap as it is a LTS version, and use the old WORKDIR method.