For pool run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:vliaskovitis:branches:Kernel:SLE15-SP6:bsc1229019-wip1/pool/home:vliaskovitis:branches:Kernel:SLE15-SP6:bsc1229019-wip1.repo
zypper refresh
zypper install kernel-default
For ARM run the following as root:
zypper addrepo https://download.opensuse.org/repositories/home:vliaskovitis:branches:Kernel:SLE15-SP6:bsc1229019-wip1/ARM/home:vliaskovitis:branches:Kernel:SLE15-SP6:bsc1229019-wip1.repo
zypper refresh
zypper install kernel-default