Fix python indentation.
Fix python indentation.

Bitbake have standardized on four space indentation. It is also enforcing this, so all other indentation
than four spaces, results in bitbake not being able to parse the recipe. qt5.inc had some 8 space indentations,
which now are fixed. Should also make sure we have four spaces, and no tabs, in our bash functions, as anything
else breaks with the standard.

ssravan/meta-qt5,ssravan/meta-qt5,ssravan/meta-qt5