Mellanox MHEA28-1TC rev.A3 HCA Card Firmware

New Features:

- Support for programming the PCI Express maximum payload size via the firmware INI file. See the parameter emt_max_payload_size_supported in the file fw-25208-defaults.ref
- Support for log_ge_per_port parameter which is used for assigning gather engines to queues.
- Added the INI parameter watchdog_enable to enable the IB flow control watchdog timer. See the file fw-25208-defaults.ref
- Support for 400 MHz DDR SDRAM DIMMs

Changes to parity error detection mechanism as follows:

- Added the INI parameter pqcp to reduce harmless QP Context array parity errors
- Added a FW mechanism for correcting TPT (Translation & Protection Table) parity errors

Fixes:

- Small message rate degradation