nds32: don't export low-level cache flushing routines

None of these is used by modules.  Nor should they as we have better
highlevel primitives.

Signed-off-by: Christoph Hellwig <hch@lst.de>
Acked-by: Greentime Hu <greentime@andestech.com>
Signed-off-by: Greentime Hu <greentime@andestech.com>
This commit is contained in:
Christoph Hellwig 2019-04-29 06:51:43 -05:00 • committed by Greentime Hu
commit a771e92250