crypto: hisilicon/qm - remove incorrect type cast

The 'offset' type is unsigned long in 'struct debugfs_reg32',
so type of values casts to unsigned long long is incorrect, and the
values do not require type cast, remove them.

Signed-off-by: Weili Qian <qianweili@huawei.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>