Set correct size of the CIM LA dump for T6.

Fixes: 27887bc7 ("cxgb4: collect hardware LA dumps")
Signed-off-by: NRahul Lakkireddy <rahul.lakkireddy@chelsio.com>
Signed-off-by: NGanesh Goudar <ganeshgr@chelsio.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>