change layout to follow oe-core guidelines of recipes

change layout to follow oe-core guidelines of recipes

Follow the rules defined in:
http://git.yoctoproject.org/cgit/cgit.cgi/poky/tree/meta/recipes.txt

recipes-bsp          - Anything with links to specific hardware or
                       hardware configuration information
recipes-connectivity - Libraries and applications related to
                       communication with other devices
recipes-core         - What's needed to build a basic working Linux
                       image including commonly used dependencies
recipes-devtools     - Tools primarily used by the build system (but can
                       also be used on targets)
recipes-extended     - Applications which whilst not essential add
                       features compared to the alternatives in
                       core. May be needed for full tool functionality
                       or LSB compliance.
recipes-gnome        - All things related to the GTK+ application
                       framework
recipes-graphics     - X and other graphically related system libraries
recipes-kernel       - The kernel and generic applications/libraries
                       with strong kernel dependencies
recipes-lsb4         - Recipes added for the sole purpose of supporting
                       the Linux Standard Base (LSB) 4.x
recipes-multimedia   - Codecs and support utilties for audio, images and
                       video
recipes-rt           - Provides package and image recipes for using and
                       testing the PREEMPT_RT kernel
recipes-qt           - All things related to the Qt application
                       framework
recipes-sato         - The Sato demo/reference UI/UX, its associated
                       apps and configuration
recipes-support      - Recipes used by other recipes but that are not
                       directly included in images
recipes-dpaa         - recipes related to fsl dpaa feature
recipes-virtualization - recipes related to fsl virtualization feature

Signed-off-by: Ting Liu <b28495@freescale.com>