ARM_Interface: Allow for partial invalidation of instruction cache

src/core/arm/dyncom/arm_dyncom.h

@@ -19,6 +19,7 @@ public:
     void Step() override;
 
     void ClearInstructionCache() override;
+    void InvalidateCacheRange(u32 start_address, size_t length) override;
     void PageTableChanged() override;
 
     void SetPC(u32 pc) override;