lttng-ust from home:Simmphonie:mono project

对于 openSUSE Tumbleweed，请以根用户 root 运行下面命令：

zypper addrepo https://download.opensuse.org/repositories/home:Simmphonie:mono/openSUSE_Tumbleweed/home:Simmphonie:mono.repo
zypper refresh
zypper install lttng-ust