staging: rtl8723au: Kill off HW_VAR_CAM_EMPTY_ENTRY and some function layers wrapping it

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_wlan_util.c
Simple merge

diff --cc drivers/staging/rtl8723au/hal/hal_com.c
Simple merge

diff --cc drivers/staging/rtl8723au/hal/rtl8723a_bt-coexist.c
Simple merge

diff --cc drivers/staging/rtl8723au/hal/rtl8723a_hal_init.c
Simple merge

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

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