reloc: add ubsan-suppressions.supp to relocatable package
reloc: add ubsan-suppressions.supp to relocatable package

So we can use it to suppress false-positive ubsan error
when running scylla in debug mode.

Signed-off-by: Benny Halevy <23c997c90eb8537635e9392d48e7af1bf1b2ca22@scylladb.com>
Message-Id: <20201110165214.1467027-1-23c997c90eb8537635e9392d48e7af1bf1b2ca22@scylladb.com>

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla