drm/hisilicon/hibmc: Add MSI irq getting and requesting for HPD

To realize HPD feature, request irq for HPD , add its handler function.
We use pci_alloc_irq_vectors() to get our msi irq, because we have two
interrupts now.

Signed-off-by: Baihan Li <libaihan@huawei.com>
Signed-off-by: Yongbang Shi <shiyongbang@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Link: https://lore.kernel.org/r/20250331074212.3370287-9-shiyongbang@huawei.com


Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>