ARM: davinci_all_defconfig: cleanup with savedefconfig

It's been awhile since a cleanup was done.  Regenerate the default settings by

$ make davinci_all_config
$ make savedefconfig
$ cp defconfig arch/arm/configs/davinci_all_defconfig

Cc: Sekhar Nori <nsekhar@ti.com>
Signed-off-by: Kevin Hilman <khilman@baylibre.com>
Signed-off-by: Sekhar Nori <nsekhar@ti.com>