In systemd when building with sanitizers we link against clang's shared ASAN
libraries with -shared-libasan. The opensuse rpm we build with sanitizers is
then installed into the initramfs. Currently we have to install the entire
clang package into the initramfs to make sure the shared ASAN libraries are
available.

Please create a compiler-rt subpackage (as exists on Fedora, CentOS and Arch
Linux already) which contains the shared ASAN libraries among other things so
we don't have to install the full clang package into the initramfs when
building with sanitizers.