Bug fix: clean up MCP state in case of error in bnx2x_init_hw().

Author: Dmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: NDmitry Kravkov <dmitry@broadcom.com>
Signed-off-by: NVladislav Zolotarov <vladz@broadcom.com>
Signed-off-by: NEilon Greenstein <eilong@broadcom.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>