staging: r8188eu: remove HAL_DEF_IS_SUPPORT_ANT_DIV

In order to get rid of the function GetHalDefVar8188EUsb(), remove
the HAL_DEF_IS_SUPPORT_ANT_DIV case from it and move the functionality
into a new function. This is part of the ongoing effort to get rid of
the unwanted hal layer.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220405104910.9769-3-straube.linux@gmail.com


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