Small update and cleanup to Quark BSP
Small update and cleanup to Quark BSP

 - Switch to 4.0 kernel release branch
 - Follow releases and update to 4.0.5 version
 - Clean up some BSP details

Signed-off-by: Jussi Laako <74428bbfcde5cb592e6e0c5ce94fbd68b7233456@linux.intel.com>

yongli3/meta-ostro-bsp,yongli3/meta-ostro-bsp,yongli3/meta-ostro-bsp,yongli3/meta-ostro-bsp,yongli3/meta-ostro-bsp