qcow2: Use L1E_SIZE in qcow2_write_l1_entry()

We overlooked these in 02b1ecfa100e7ecc2306560cd27a4a2622bfeb04

Signed-off-by: Alberto Garcia <berto@igalia.com>
Message-Id: <20200928162333.14998-1-berto@igalia.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
1 file changed