staging: r8188eu: use ether_addr_copy() in rtw_macaddr_cfg()

Use ether_addr_copy() in rtw_macaddr_cfg() to copy the mac address.
The buffers are properly aligned.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20210830121508.6411-7-straube.linux@gmail.com


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