We had one section of the code mixing tabs with spaces, which is
particularly undesirable with python code.
(Bitbake rev: 8eaa093b179e03a6003a47220540b1bc73afca17)
Signed-off-by: Paul Eggleton <paul.eggleton@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>