bnxt_en: Add 100G link speed reporting for BCM57454 ASIC in ethtool

bnxt_en: Add 100G link speed reporting for BCM57454 ASIC in ethtool

Orabug: 26402533, 26325599, 26366387

Added support for 100G link speed reporting for Broadcom BCM57454
ASIC in ethtool command.

Signed-off-by: Deepak Khungar <deepak.khungar@broadcom.com>
Signed-off-by: Ray Jui <ray.jui@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit 38a21b34aacd4db7b7b74c61afae42ea6718448d)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Conflicts:
	drivers/net/ethernet/broadcom/bnxt/bnxt_ethtool.c
Signed-off-by: Somasundaram Krishnasamy <somasundaram.krishnasamy@oracle.com>