crypto: hisilicon/qm - change function names

The accelerator devices support multiple interrupts.
To better reflect purpose of each interrupt function,
change function name 'qm_irq' to 'qm_eq_irq' and 'do_qm_irq'
to 'do_qm_eq_irq'.

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