bnx2: Update driver to use new mips firmware.

bnx2: Update driver to use new mips firmware.

bnx2-mips-06-6.2.3 and bnx2-mips-09-6.2.1.b

New firmware fixes iSCSI problems with some LeftHand targets that don't
set TTT=0xffffffff for Data-In according to spec.  Firmware generates
exception warnings for this condition and becomes very slow.  This is
fixed by suppressing these warnings when using default error mask.

(cherry picked from commit c2c20ef43d00b1439631e603f8dcee9a803cd8b3)
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Joe Jin <joe.jin@oracle.com>
Signed-off-by: Maxim Uvarov <maxim.uvarov@oracle.com>
Conflicts:
	drivers/net/ethernet/broadcom/bnx2.c
	firmware/Makefile