staging: rtl8723au: Get rid of SetPrivacy()/SetPwrMgt()/SetMData() macros

Set these bits directly in the code instead of fiddling with wrapper
macros.

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