rdbms: allow callers to hint that native insertSelect() is safe

rdbms: allow callers to hint that native insertSelect() is safe

An INSERT SELECT in MySQL/MariaDB is unsafe for replication if a column
is getting values from auto-increment, statement-based replication is in
use, and the default innodb_autoinc_lock_mode is set.

I9173f655 added checks to force non-native insertSelect for the
statement-based replication and innodb_autoinc_lock_mode != 2 case, but
determining whether a column is getting values from auto-increment is
too hard to do automatically there.

Instead, let's add a flag to let the caller hint that the query isn't
getting any auto-increment values. And use it in MysqlUpdater when
appropriate.

Bug: T160993
Change-Id: If70450a64aa3bcbf763c62838bb21306d124ae3d