ANDROID: Use a faked paletted texture for CLUT cursors

Same change as for the game screen, reduces CPU usage a little

backends/platform/android/android.cpp

@@ -359,7 +359,7 @@ void OSystem_Android::initBackend() {
 
 	_game_texture = new GLESFakePalette565Texture();
 	_overlay_texture = new GLES4444Texture();
-	_mouse_texture_palette = new GLESPalette5551Texture();
+	_mouse_texture_palette = new GLESFakePalette5551Texture();
 	_mouse_texture = _mouse_texture_palette;
 
 	initOverlay();

backends/platform/android/android.h

@@ -129,7 +129,7 @@ private:
 
 	// Mouse layer
 	GLESBaseTexture *_mouse_texture;
-	GLESPaletteTexture *_mouse_texture_palette;
+	GLESBaseTexture *_mouse_texture_palette;
 	GLES5551Texture *_mouse_texture_rgb;
 	Common::Point _mouse_hotspot;
 	uint32 _mouse_keycolor;

backends/platform/android/texture.cpp

@@ -584,5 +584,13 @@ GLESFakePalette565Texture::GLESFakePalette565Texture() :
 GLESFakePalette565Texture::~GLESFakePalette565Texture() {
 }
 
+GLESFakePalette5551Texture::GLESFakePalette5551Texture() :
+	GLESFakePaletteTexture(GL_RGBA, GL_UNSIGNED_SHORT_5_5_5_1,
+							GLES5551Texture::pixelFormat()) {
+}
+
+GLESFakePalette5551Texture::~GLESFakePalette5551Texture() {
+}
+
 #endif
 

backends/platform/android/texture.h

@@ -330,6 +330,12 @@ public:
 	virtual ~GLESFakePalette565Texture();
 };
 
+class GLESFakePalette5551Texture : public GLESFakePaletteTexture {
+public:
+	GLESFakePalette5551Texture();
+	virtual ~GLESFakePalette5551Texture();
+};
+
 #endif
 #endif