staging: rtl8723au: Make event callbacks take a const u8 *

This avoids an ugly cast in mlme_evt_hdl23a()

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --cc drivers/staging/rtl8723au/core/rtw_mlme.c
Simple merge

diff --cc drivers/staging/rtl8723au/core/rtw_mlme_ext.c
Simple merge

diff --cc drivers/staging/rtl8723au/include/rtw_event.h
Simple merge

diff --cc drivers/staging/rtl8723au/include/rtw_mlme.h
Simple merge

diff --cc drivers/staging/rtl8723au/include/rtw_mlme_ext.h
Simple merge