Fix log message

Fixed debug log message to reflect the current configuration comes from
the configuration file and not the system defaults.

Signed-off-by: Chuck Tuffli <chuck.tuffli@oakgatetech.com>
Add PCI-Express capability structure

Signed-off-by: Chuck Tuffli <chuck.tuffli@oakgatetech.com>
Add MSI support

Add MSI initialization and capability structure to default
configuration. Modify calls to msix_notify to use the more generic
isr_notify() which supports both MSI and MSI-X.

Signed-off-by: Chuck Tuffli <chuck.tuffli@oakgatetech.com>