bnxt_en: Call bnxt_dcb_init() after getting firmware DCBX configuration.

bnxt_en: Call bnxt_dcb_init() after getting firmware DCBX configuration.

Orabug: 26402533, 26325599, 26366387

In the current code, bnxt_dcb_init() is called too early before we
determine if the firmware DCBX agent is running or not.  As a result,
we are not setting the DCB_CAP_DCBX_HOST and DCB_CAP_DCBX_LLD_MANAGED
flags properly to report to DCBNL.

Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 87fe603274aa9889c05cca3c3e45675e1997cb13)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Conflicts:
	drivers/net/ethernet/broadcom/bnxt/bnxt.c
Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>