[vk] Fixing wrong enabling logic

src/video_core/vulkan_common/vulkan_device.cpp

@@ -1450,12 +1450,13 @@ void Device::RemoveUnsuitableExtensions() {
 
     // VK_EXT_multi_draw
     extensions.multi_draw = features.multi_draw.multiDraw;
-    
     if (extensions.multi_draw) {
+        features.multi_draw.multiDraw = VK_TRUE;
         LOG_INFO(Render_Vulkan, "VK_EXT_multi_draw: maxMultiDrawCount={}",
                  properties.multi_draw.maxMultiDrawCount);
+    } else {
+        features.multi_draw.multiDraw = VK_FALSE;
     }
-    
     RemoveExtensionFeatureIfUnsuitable(extensions.multi_draw, features.multi_draw,
                                        VK_EXT_MULTI_DRAW_EXTENSION_NAME);
 

src/video_core/vulkan_common/vulkan_device.h

@@ -743,9 +743,10 @@ public:
         return Settings::values.dyna_state.GetValue() > 0;
     }
 
-    /// Returns true if the device supports VK_EXT_vertex_input_dynamic_state.
+    /// Returns true if VK_EXT_vertex_input_dynamic_state is enabled on the device.
     bool IsExtVertexInputDynamicStateSupported() const {
-        return extensions.vertex_input_dynamic_state;
+        return extensions.vertex_input_dynamic_state &&
+               features.vertex_input_dynamic_state.vertexInputDynamicState;
     }
 
     /// Returns true if the device supports VK_EXT_shader_demote_to_helper_invocation