Revises kernel so that it uses the standard NULL symbol defined for C99, rather than having its own custom symbol. Change-Id: I74342f192e95899a83db879e8b1c8fe89ac8b92d Signed-off-by: Allan Stephens <allan.stephens@windriver.com>
Signed-off-by: <inaky.perez-gonzalez@intel.com>