staging: r8188eu: remove hal_init_macaddr()

hal_init_macaddr() is just a wrapper around SetHwReg8188EU() which
calls hw_var_set_macaddr(). Remove hal_init_macaddr(), remove the
HW_VAR_MAC_ADDR case from SetHwReg8188EU() and call
hw_var_set_macaddr() directly.

Signed-off-by: Michael Straube <straube.linux@gmail.com>
Link: https://lore.kernel.org/r/20220130111219.6390-4-straube.linux@gmail.com


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