powerpc/86xx: Update defconfigs

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>

diff --cc arch/powerpc/configs/86xx/gef_ppc9a_defconfig
Simple merge

diff --cc arch/powerpc/configs/86xx/gef_sbc310_defconfig
Simple merge

diff --cc arch/powerpc/configs/86xx/gef_sbc610_defconfig
Simple merge

diff --cc arch/powerpc/configs/86xx/mpc8610_hpcd_defconfig
Simple merge

diff --cc arch/powerpc/configs/86xx/mpc8641_hpcn_defconfig
Simple merge

diff --cc arch/powerpc/configs/86xx/sbc8641d_defconfig
Simple merge

diff --cc arch/powerpc/configs/mpc86xx_defconfig
Simple merge