rtl8723au_bt: Remove DOS line endings

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8723au: Align data buffer in btusb_send_frame()

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
rtl8723au_bt: Add config file and update Makefile

Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>