Made short variable names longer and more readable.
Fixed pylint warnings "Invalid variable name" and
"Invalid argument name".
(From OE-Core rev: 872cb0d5d79b26f34e6b35d7be8870d245021be4)
Signed-off-by: Ed Bartosh <ed.bartosh@linux.intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>