net/mlx5: Refactor EEPROM query error handling to return status separately

net/mlx5: Refactor EEPROM query error handling to return status separately

Matthew and Jakub reported [1] issues where inventory automation tools
are calling EEPROM query repeatedly on a port that doesn't have an SFP
connected, resulting in millions of error prints.

Move MCIA register status extraction from the query functions to the
callers, allowing use of extack reporting instead of a dmesg print when
using the netlink API.

[1] https://lore.kernel.org/netdev/20251028194011.39877-1-mattc@purestorage.com/

Cc: Matthew W Carlis <mattc@purestorage.com>
Signed-off-by: Gal Pressman <gal@nvidia.com>
Reviewed-by: Jianbo Liu <jianbol@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/1763415729-1238421-2-git-send-email-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>