pci-bridge: generic bridge needs to support pci dma functions
pci-bridge: generic bridge needs to support pci dma functions

With a generic pci bridge and a pci device on that bridge, any call to
dma functions would fail as generic pci-bridge does not support
them. This would result in TCE entries not getting populated either in
the host(vfio) or qemu.

Reviewed-by: Thomas Huth <9e65be74847981e55b2564b6266c57d86d3bac05@linux.vnet.ibm.com>
Signed-off-by: Nikunj A Dadhania <e2f4a5db9b4735182a88051d1e7a3599f9eac9db@linux.vnet.ibm.com>

open-power-host-os/slof,stefanberger/SLOF-tpm,aik/SLOF,aik/SLOF,open-power-host-os/slof,qemu/SLOF,qemu/SLOF,aik/SLOF,stefanberger/SLOF-tpm,open-power-host-os/slof,open-power-host-os/slof,qemu/SLOF,stefanberger/SLOF-tpm