Restore assert

Common/VR/PPSSPPVR.cpp

@@ -564,6 +564,8 @@ bool StartVRRender() {
 					M[11] -= separation.z;
 				}
 				memcpy(vrMatrix[matrix], M, sizeof(float) * 16);
+			} else {
+				assert(false);
 			}
 		}
 

Common/VR/VRBase.h

@@ -14,6 +14,7 @@
 
 #define _USE_MATH_DEFINES
 #include <cmath>
+#include <cassert>
 
 #ifdef ANDROID
 

Common/VR/VRRenderer.cpp

@@ -6,7 +6,6 @@
 #include "VRRenderer.h"
 #include "OpenXRLoader.h"
 
-#include <cassert>
 #include <cstdlib>
 #include <cstring>