Backport based on wl12xx.git ol_R5.SP7.01
wl12xx: driver version: ol_R5.SP7.01-dirty
wl12xx: compilation time: Tue Dec  2 15:28:44 2014
wl12xx: SDIO init
wl12xx_set_power() ON
wl12xx_set_power() ON
wl12xx: wl12xx_sdio_power_on()
wl12xx_set_power() OFF
wl12xx: wl12xx_sdio_power_off()
wl12xx: loaded