The mediatek driver starts several async crypto ops and waits for their
completions. Move it over to generic code doing the same.
Signed-off-by: NGilad Ben-Yossef <gilad@benyossef.com>
Acked-by: NRyder Lee <ryder.lee@mediatek.com>
Signed-off-by: NHerbert Xu <herbert@gondor.apana.org.au>