crypto: hisilicon: Fix misuse of GENMASK macro

Arguments are supposed to be ordered high then low.

Fixes: c8b4b477 ("crypto: hisilicon - add HiSilicon HPRE accelerator")
Signed-off-by: Rikard Falkeborn <rikard.falkeborn@gmail.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>