bnx2x: Enable `set_phys_id' for all functions

In Multi-function mode, all functions should be able to utilize said function;
There's no reason why only the link owner should be able to do so.

Signed-off-by: Yaniv Rosner <yanivr@broadcom.com>
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com>
Signed-off-by: Eilon Greenstein <eilong@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>