LCD Zapper sensor logic should be inverted because 0: detected; 1: not detected

src/input/lcdcompzapper.cpp

@@ -35,8 +35,9 @@ void UpdateLCDCompZapper(int w, void* data, int arg)
 	// In the '(*(uint32*)data)' variable, bit 0 holds the trigger value and bit 1 holds the light sense value.
 	// Ultimately this needs to be converted from 0000 00lt to 000t l000 where l is the light bit and t
 	// is the trigger bit.
+	// l must be inverted because 0: detected; 1: not detected
 	lcdCompZapperData[w] = ((((*(uint32*)data) & 1) << 4) | 
-		                (((*(uint32*)data) & 2) << 2));
+		                (((*(uint32*)data) & 2 ^ 2) << 2));
 }
 
 static INPUTC LCDCompZapperCtrl = { ReadLCDCompZapper,0,StrobeLCDCompZapper,UpdateLCDCompZapper,0,0 };