Wipe all FBOs on device lost. May help app switching issues on Android.

GPU/GLES/DisplayListInterpreter.cpp

@@ -233,6 +233,7 @@ void GLES_GPU::DeviceLost() {
 	// FBO:s appear to survive? Or no?
 	shaderManager_->ClearCache(false);
 	textureCache_.Clear(false);
+	framebufferManager_.DeviceLost();
 }
 
 void GLES_GPU::InitClear() {

GPU/GLES/Framebuffer.cpp

@@ -567,6 +567,11 @@ void FramebufferManager::EndFrame() {
 	}
 }
 
+void FramebufferManager::DeviceLost() {
+	DestroyAllFBOs();
+	resized_ = false;
+}
+
 void FramebufferManager::BeginFrame() {
 	DecimateFBOs();
 	// NOTE - this is all wrong. At the beginning of the frame is a TERRIBLE time to draw the fb.

GPU/GLES/Framebuffer.h

@@ -94,6 +94,7 @@ public:
 	void BeginFrame();
 	void EndFrame();
 	void Resized();
+	void DeviceLost();
 	void CopyDisplayToOutput();
 	void SetRenderFrameBuffer();  // Uses parameters computed from gstate
 	void UpdateFromMemory(u32 addr, int size);