omap_hsmmc: enable sdio_irq.

There are some horrible hacks in here, particularly
the fact that we still poll.  surprisingly this adds
20% to throughput.

Signed-off-by: NeilBrown <neilb@suse.de>

Conflicts:
	drivers/mmc/host/omap_hsmmc.c
libertas_sdio: Load firmware during probe

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
libertas_sdio: Prevent going to sleep when the driver is loaded

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>
gta04_defconfig: Builtin Wi-Fi dependencies

Signed-off-by: Paul Kocialkowski <contact@paulk.fr>