linux-mainline 3.8: set LCD brightness to 100% by default

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
linux-mainline 3.8: import GSoC ADC work, add PPS-gpio support and import some RTC cape fixes

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
contrib: bone-flash-tool: try harder to get eMMC controller to flush its cache

Signed-off-by: Koen Kooi <koen@dominion.thruhere.net>
linux-mainline 3.8: fix build failure

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