cappuccino: lsu: move dc_sdat assign inside FEATURE_DATACACHE!="NONE"

Otherwise dc_sdat will be assigned twice when data cache is disabled.
Fix bug, `spr_dmr2` is floating when `FEATURE_DEBUGUNIT!="NONE"`.
remove cache enable debug prints

verilator will turn the $time call in those into a systemc libcall,
even when generating pure c++.
This kind of debug prints are anyway more suited for monitors,
so remove it from here.
Merge remote-tracking branch 'official/master'