Update README file:
- remove outdated parts
- clarify terminology and general structure
- add some description of vUDC
Signed-off-by: NKrzysztof Opasiak <k.opasiak@samsung.com>
Acked-by: NShuah Khan <shuahkh@osg.samsung.com>
Signed-off-by: NGreg Kroah-Hartman <gregkh@linuxfoundation.org>