u-boot: add patch from gumstix u-boot repo

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
u-boot: add patch for Alto35 support

Signed-off-by: Peter A. Bigot <pab@pabigot.com>
u-boot: add patch for more Gumstix expansion boards.

This adds eeprom ids for Stagecoach, Thumbo and Turtlecore.
u-boot: bump PR.

Previous patch neglected to bump PR.
Allow recording on Overo by default
Enable bluetooth hardware for Pepper Kernel
u-boot-2013.07: Add patches for NAND flashing on Overo.