Merge pull request #1099 from cdavis5e/queue-capture-scope

MVKQueue: Only create one GPUCaptureScope per queue.
diff --git a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
index 1f75bf1..4642012 100644
--- a/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
+++ b/MoltenVK/MoltenVK/GPUObjects/MVKDevice.mm
@@ -1236,7 +1236,7 @@
 		_metalFeatures.mslVersionEnum = MTLLanguageVersion2_2;
 		_metalFeatures.native3DCompressedTextures = true;
         _metalFeatures.renderWithoutAttachments = true;
-        if ( mvkOSVersionIsAtLeast(mvkMakeOSVersion(10, 15, 5)) ) {
+        if ( mvkOSVersionIsAtLeast(mvkMakeOSVersion(10, 15, 6)) ) {
             _metalFeatures.sharedLinearTextures = true;
         }
 		if (supportsMTLGPUFamily(Mac2)) {