habanalabs: add critical indication in sram ecc

Multiple SRAM SERR events are treated as critical events,
and host should be notified about it. Thus, adding is_critical
indication as part of SRAM ECC failure packet.

Signed-off-by: ran shalit <rshalit@habana.ai>
Reviewed-by: Oded Gabbay <ogabbay@kernel.org>
Signed-off-by: Oded Gabbay <ogabbay@kernel.org>