kernel-source-longterm from home:obs_user99:branches:Kernel:slowroll project

需要 standard ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:obs_user99:branches:Kernel:slowroll/standard/home:obs_user99:branches:Kernel:slowroll.repo
zypper refresh
zypper install kernel-source-longterm