RsData: fix log print bug and data/uop-read bug

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fix bugs in data wrapping:
1. not init wen
2. XSDebug print info
3. use debug_data to save debug info (disabled when FPGAPlatform=true)

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instead of select it when read value from reg file
so that we needn't save imm in data

add parameter srcNum in RsCtrlDataIO

ReservationStation: change width of srcRegValue into (XLEN+1)

reg -> reg / imm