Move framebufChanged into the dirty flag field

GPU/Vulkan/FramebufferVulkan.cpp

@@ -1628,7 +1628,7 @@ void FramebufferManagerVulkan::FlushBeforeCopy() {
 	// TODO: It's really bad that we are calling SetRenderFramebuffer here with
 	// all the irrelevant state checking it'll use to decide what to do. Should
 	// do something more focused here.
-	SetRenderFrameBuffer(gstate_c.framebufChanged, gstate_c.skipDrawReason);
+	SetRenderFrameBuffer(gstate_c.IsDirty(DIRTY_FRAMEBUF), gstate_c.skipDrawReason);
 	drawEngine_->Flush(curCmd_);
 }