fs/dirty_pages: introduce a new config option 'CONFIG_DIRTY_PAGES'

hulk inclusion
category: bugfix
bugzilla: https://gitee.com/openeuler/kernel/issues/I8KE0Z?from=project-issue



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The new config option 'CONFIG_DIRTY_PAGES' can control whether to
configure the feather or not.

Signed-off-by: yu kuai <yukuai3@huawei.com>
Signed-off-by: Zizhi Wo <wozizhi@huawei.com>