staging:rtl8192u: Clean up of spacing - Style

Multiple blank line, which cause an issue with checkpath, have been
removed and the spacing of definitions have been aligned to look
cleaner.

These are coding style changes which should have no impact on
runtime code execution.

Signed-off-by: John Whitmore <johnfwhitmore@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>