replica: table: generate_and_propagate_view_updates: pass mutation to make_flat_mutation_reader_from_mutations_v2
replica: table: generate_and_propagate_view_updates: pass mutation to make_flat_mutation_reader_from_mutations_v2

With f5ef687acd5aaec95db3b13a07c021e11f7b3ec7
we can consume the single mutation directly,
so there's n need to pass it as a vector of size 1.

Signed-off-by: Benny Halevy <23c997c90eb8537635e9392d48e7af1bf1b2ca22@scylladb.com>
Message-Id: <20220424103826.3930895-1-23c997c90eb8537635e9392d48e7af1bf1b2ca22@scylladb.com>

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