crypto: hisilicon/qm - some optimizations of ths qos write process

1. Optimize overly long functions.
2. Fix the format symbol does not match the actual type.
3. Use the PCI_DEVFN to get the function id.

Signed-off-by: Kai Ye <yekai13@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>