Updated MoltenVK version:
`v1.0.38` -> `v1.0.40`
Change-Id: Id51adc7234dffc7cf14560d6f30a0e07d8ef5f69
"sub_dir" : "MoltenVK",
"build_dir" : "MoltenVK",
"install_dir" : "MoltenVK",
- "commit" : "v1.0.38",
+ "commit" : "v1.0.40",
"custom_build" : [
"./fetchDependencies --glslang-root {0[glslang][repo_dir]}",
"xcodebuild -project MoltenVKPackaging.xcodeproj GCC_PREPROCESSOR_DEFINITIONS='$GCC_PREPROCESSOR_DEFINITIONS MVK_CONFIG_LOG_LEVEL=1' -scheme \"MoltenVK Package\" build"