staging: vt6655: Replace MACvReceive1 with function vt6655_mac_dma_ctl

Convert macro MACvReceive1 to existing static function. This saves
codelines and multiline macros are not liked by kernel community.

Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/ec8dbbfeccb32e0b5c753702cb70d2749426c054.1659080988.git.philipp.g.hortmann@gmail.com


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