net: hinic: fix incorrect assignment issue in hinic_set_interrupt_cfg()

[ Upstream commit c0605cd6 ]

The value of lli_credit_cnt is incorrectly assigned, fix it.

Fixes: a0337c0d ("hinic: add support to set and get irq coalesce")
Signed-off-by: Zhengchao Shao <shaozhengchao@huawei.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>