* mmu: wrap l2tlb's param withL2TLBParameters

* mmu.l2tlb: add param blockBytes: 64, 8 ptes

* mmu.l2tlb: set l2tlb cache size to l2:256, l3:4096

* mmu.l2tlb: add config print

* mmu.l2tlb: fix bug of resp data indices choosen and opt coding style