ODROID: new hwpacks configuration for ODROID-X

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
ODROID: add default extra boot options

This patch is to add board specific extra boot options. Addition boot options
will be added by Linaro Image Tool such as console and root.

Signed-off-by: Dongjin Kim <tobetter@gmail.com>
ODROID: change kernel page name for v3.8.6+

Signed-off-by: Dongjin Kim <tobetter@gmail.com>