bnxt_en: Fix an error handling path in 'bnxt_get_module_eeprom()'

bnxt_en: Fix an error handling path in 'bnxt_get_module_eeprom()'

Orabug: 27648355, 27648339

Error code returned by 'bnxt_read_sfp_module_eeprom_info()' is handled a
few lines above when reading the A0 portion of the EEPROM.
The same should be done when reading the A2 portion of the EEPROM.

In order to correctly propagate an error, update 'rc' in this 2nd call as
well, otherwise 0 (success) is returned.

Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: David S. Miller <davem@davemloft.net>
(cherry picked from commit dea521a2b9f96e905fa2bb2f95e23ec00c2ec436)
Signed-off-by: Brian Maly <brian.maly@oracle.com>
Reviewed-by: Jack Vogel <jack.vogel@oracle.com>