mlxsw: spectrum: Update the supported firmware to version 13.1910.622

This new firmware contains:
 * New packet traps for discarded packets
 * Secure firmware flash bug fix
 * Fence mechanism bug fix
 * TCAM RMA bug fix

Signed-off-by: Shalom Toledo <shalomt@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>