linux-mainline 3.8: add leds-pwm and bacon cape support

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
contrib: bone-flash-tool: mount vfat async again

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
contrib: bone-flash-tool: switch to new date mode for emmc-prepare and fix vfat parition in mmc-prepare

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>