kernel-source from devel:ARM:15.6:Contrib:N1SDP project
Select Your Operating System
Add repository and install manually
For 15.6 run the following as root:
zypper addrepo https://download.opensuse.org/repositories/devel:ARM:15.6:Contrib:N1SDP/15.6/devel:ARM:15.6:Contrib:N1SDP.repo zypper refresh zypper install kernel-source