staging: r8188eu: clarify the bBusyTraffic assignment

bBusyTraffic is set only if we're not in WIFI_AP_STATE, i.e. in the else
branch. If we were not in WIFI_AP_STATE, we'd go into the if branch and
return _SUCCESS before making it to the bBusyTraffic assignment.

Move the assignment into the else branch to make this clearer.

Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Tested-by: Philipp Hortmann <philipp.g.hortmann@gmail.com> # Edimax N150
Acked-by: Pavel Skripkin <paskripkin@gmail.com>
Link: https://lore.kernel.org/r/20221015152440.232281-4-martin@kaiser.cx


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