Cross Reference: /external/swiftshader/third_party/SPIRV-Tools/build_overrides

`Name`	`Date`	`Size`
Up to higher level directory
`build.gni`	22-Oct-2020	`1.7K`
`gtest.gni`	22-Oct-2020	`981`
`spirv_tools.gni`	22-Oct-2020	`1K`