JIT64: try enabling dcbz again

This time, check the address carefully beforehand, since apparently some games
do horrible things like running it on non-RAM addresses, or at the very least
virtual addresses.

Source/Core/Core/HW/Memmap.h

@@ -126,6 +126,7 @@ u8* GetPointer(const u32 _Address);
 void DMA_LCToMemory(const u32 _iMemAddr, const u32 _iCacheAddr, const u32 _iNumBlocks);
 void DMA_MemoryToLC(const u32 _iCacheAddr, const u32 _iMemAddr, const u32 _iNumBlocks);
 void Memset(const u32 _Address, const u8 _Data, const u32 _iLength);
+void ClearCacheLine(const u32 _Address); // Zeroes 32 bytes; address should be 32-byte-aligned
 
 // TLB functions
 void SDRUpdated();