[PATCH AUTOSEL for 4.14 46/67] PCI: designware-ep: Fix ->get_msi() to check MSI_EN bit

From: Kishon Vijay Abraham I [ Upstream commit a134a457ed985dca8cce7ac4ea66129ea70eba73 ] ->get_msi() now checks MSI_EN bit in the MSI CAPABILITY register to find whether the host supports MSI instead of using the MSI ADDRESS in the MSI CAPABILITY register. This fixes the issue

[PATCH AUTOSEL for 4.14 46/67] PCI: designware-ep: Fix ->get_msi() to check MSI_EN bit

From: Kishon Vijay Abraham I [ Upstream commit a134a457ed985dca8cce7ac4ea66129ea70eba73 ] ->get_msi() now checks MSI_EN bit in the MSI CAPABILITY register to find whether the host supports MSI instead of using the MSI ADDRESS in the MSI CAPABILITY register. This fixes the issue with the