Emulator: Move LCDC inside PPU class

src/ppu.h

@@ -23,7 +23,12 @@
 #define TILE_HEIGHT 8
 #define TILE_SIZE 16
 
-enum LCDC : uint8_t {
+class PPU final : public ProcessingUnit {
+public:
+	PPU(uint32_t frequency);
+	~PPU();
+
+	enum LCDC : uint8_t {
 		None = 0,
 		BGandWindowEnable = BIT(0),
 		OBJEnable = BIT(1),
@@ -33,12 +38,7 @@ enum LCDC : uint8_t {
 		WindowEnable = BIT(5),            //
 		WindowTileMapArea = BIT(6),       // 0 = 0x9800-9bff, 1 = 0x9c00-9fff
 		LCDandPPUEnable = BIT(7),
-};
+	};
-
-class PPU final : public ProcessingUnit {
-public:
-	PPU(uint32_t frequency);
-	~PPU();
 
 	enum State : uint8_t {
 		HBlank = 0,