framebuffer location for no-psram boards (#6219)

If board has no PSRAM, we need to set the framebuffer location to DRAM:
config.fb_location = CAMERA_FB_IN_DRAM;

libraries/ESP32/examples/Camera/CameraWebServer/CameraWebServer.ino

@@ -62,6 +62,7 @@ void setup() {
     config.frame_size = FRAMESIZE_SVGA;
     config.jpeg_quality = 12;
     config.fb_count = 1;
+    config.fb_location = CAMERA_FB_IN_DRAM;
   }
 
 #if defined(CAMERA_MODEL_ESP_EYE)