cross-epiphany-gcc11-bootstrap from home:Laikulo:cross-or1k project

需要 openSUSE Tumbleweed ，用 root 執行：

zypper addrepo https://download.opensuse.org/repositories/home:Laikulo:cross-or1k/openSUSE_Tumbleweed/home:Laikulo:cross-or1k.repo
zypper refresh
zypper install cross-epiphany-gcc11-bootstrap