net: stmicro: replace kzalloc with devm_kzalloc

The axi variable was not being freed upon device removal.
With devm_kzalloc it ensures that it is properly freed.

Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
1 file changed