staging: wfx: improve readability of association processing

The statements in wfx_bss_info_changed() has no particular order.

For better readability, group and sort the statements relative to the
association processing.

Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200907101521.66082-2-Jerome.Pouiller@silabs.com


Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>