arcmsr: add code to support MSI-X and MSI interrupt

This patch adds code to support MSI and MSI-X interrupt.

Signed-off-by: Ching Huang <ching2048@areca.com.tw>
Reviewed-by: Tomas Henzl <thenzl@redhat.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
2 files changed