OpcodeDispatcher: Explicitly calculate flags after _TelemetrySetValue

Opcode handlers are written with the assumption that LoadSource will not
touch flags and this would be an annoying assumption to change. As this
is such an edge case anyway just don't defer flags and force a load of
the saved value before _TelemetrySetValue (which are implicitly saved
before it).

Fixes the following snippet in upc.exe:
AND        word ptr [ESP + ECX*0x1 + 0x80000000],DX
BTR        CX,DX
ADC        CX,word ptr SS:[EAX + ECX*0x1 + 0x80000000]

FEXCore/Source/Interface/Core/OpcodeDispatcher.cpp

@@ -4101,6 +4101,8 @@ void OpDispatchBuilder::CheckLegacySegmentRead(Ref NewNode, uint32_t SegmentReg)
 
   // Will set the telemetry value if NewNode is != 0
   _TelemetrySetValue(NewNode, TelemIndex);
+  // Telemetry will dirty flags, and user code does not expect LoadSource to clobber flags, fix that up here as this is an edge case.
+  CalculateDeferredFlags();
 #endif
 }
 
@@ -4139,6 +4141,8 @@ void OpDispatchBuilder::CheckLegacySegmentWrite(Ref NewNode, uint32_t SegmentReg
 
   // Will set the telemetry value if NewNode is != 0
   _TelemetrySetValue(NewNode, TelemIndex);
+  // Telemetry will dirty flags, and user code does not expect LoadSource to clobber flags, fix that up here as this is an edge case.
+  CalculateDeferredFlags();
 #endif
 }