Make address translation respect the CPU translation mode.

The PowerPC CPU has bits in MSR (DR and IR) which control whether
addresses are translated. We should respect these instead of mixing
physical addresses and translated addresses into the same address space.

This is mostly mass-renaming calls to memory accesses APIs from places
which expect address translation to use a different version from those
which do not expect address translation.

This does very little on its own, but it's the first step to a correct BAT
implementation.

Source/Core/Core/PowerPC/JitInterface.h

@@ -29,9 +29,6 @@ namespace JitInterface
 	// Memory Utilities
 	bool HandleFault(uintptr_t access_address, SContext* ctx);
 
-	// used by JIT to read instructions
-	u32 ReadOpcodeJIT(const u32 _Address);
-
 	// Clearing CodeCache
 	void ClearCache();