Capture/Replay: Allow serializing cube map array data.

This ASSERT was firing which was preventing several traces from
re-tracing.

Bug: angleproject:5133
Change-Id: I86d956bf0c95210bef5572a30fb786555d14522f
Reviewed-on: https://chromium-review.googlesource.com/c/angle/angle/+/3123226
Commit-Queue: Jamie Madill <jmadill@chromium.org>
Reviewed-by: Tim Van Patten <timvp@google.com>
Reviewed-by: Cody Northrop <cnorthrop@google.com>

src/libANGLE/capture/frame_capture_utils.cpp

@@ -1124,7 +1124,8 @@ Result SerializeTextureData(JsonSerializer *json,
         // Check for supported textures
         ASSERT(index.getType() == gl::TextureType::_2D || index.getType() == gl::TextureType::_3D ||
                index.getType() == gl::TextureType::_2DArray ||
-               index.getType() == gl::TextureType::CubeMap);
+               index.getType() == gl::TextureType::CubeMap ||
+               index.getType() == gl::TextureType::CubeMapArray);
 
         GLenum glFormat = format.format;
         GLenum glType   = format.type;