In order to successfully perform DMA operations on PCI devices,
it is necessary to enble PCI bus mastering, so enable it by default.
Signed-off-by: NMichael Moese <michael.moese@men.de>
Signed-off-by: NJohannes Thumshirn <jthumshirn@suse.de>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>