configs: bump raspberrypi_defconfig to use the latest stable kernel

Bump raspberrypi_defconfig to use the latest revision from the stable
rpi-3.10.y branch, which is based on v3.10.36.

Bump the kernel headers used for the toolchain at the same time.

Signed-off-by: "Yann E. MORIN" <yann.morin.1998@free.fr>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>