kernel-rt from home:totovld:DOC-PW-SLE15SP5:RT-PTF project

需要 pool ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:totovld:DOC-PW-SLE15SP5:RT-PTF/pool/home:totovld:DOC-PW-SLE15SP5:RT-PTF.repo
zypper refresh
zypper install kernel-rt