idualwifi7260 & iaxwifi200: Enable PCI busmastering.

The FreeBSD KPIs that we emulate expect this to be done manually,
so we have to do it before we begin doing PCI access.

Fixes firmware load failures and device initialization problems
since the introduction of the OpenBSD driver replacing the FreeBSD one.

src/add-ons/kernel/drivers/network/wlan/iaxwifi200/dev/pci/if_iwx.c

@@ -10648,6 +10648,7 @@ iwx_attach(struct device *parent, struct device *self, void *aux)
 		BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 		BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
 		&sc->sc_dmat);
+	pci_enable_busmaster(sc->sc_dev);
 
 	if_alloc_inplace(ifp, IFT_ETHER);
 #else

src/add-ons/kernel/drivers/network/wlan/idualwifi7260/dev/pci/if_iwm.c

@@ -11743,6 +11743,7 @@ iwm_attach(struct device *parent, struct device *self, void *aux)
 		BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL,
 		BUS_SPACE_MAXSIZE_32BIT, BUS_SPACE_UNRESTRICTED, BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL,
 		&sc->sc_dmat);
+	pci_enable_busmaster(sc->sc_dev);
 
 	if_alloc_inplace(ifp, IFT_ETHER);
 #else