staging:rtl8192u: Correct code indentation - Style

Rewrite code block to correct the indentation of code. This clears the
resulting checkpatch issue.

This is a coding style change which should not impact runtime code
execution.

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