fix definition of invalidateTextureCache after TouchGFX update

Middlewares/ST/touchgfx/framework/source/touchgfx/PaintImpl.cpp

@@ -0,0 +1,19 @@
+/**
+ * @file PaintImpl.cpp
+ *
+ * fixes definition of invalidateTextureCache
+ */
+#ifndef TOUCHGFX_PAINTIMPL_HPP
+#define TOUCHGFX_PAINTIMPL_HPP
+
+#include <touchgfx/hal/Paint.hpp>
+
+namespace touchgfx {
+namespace paint {
+
+void invalidateTextureCache() {}
+
+} // namespace paint
+} // namespace touchgfx
+
+#endif // TOUCHGFX_PAINTIMPL_HPP