staging: rtl8188eu: refactor rtw_hal_antdiv_before_linked()

Refactor rtw_hal_antdiv_before_linked() to clear checkpatch warnings.

WARNING: line over 80 characters
WARNING: else is not generally useful after a break or return

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20200114134422.13598-1-straube.linux@gmail.com


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