Bug 1612619 - Fix spirv-cross override revision r=chutten

Differential Revision: https://phabricator.services.mozilla.com/D62331

--HG--
extra : moz-landing-system : lando

Cargo.toml

@@ -64,7 +64,7 @@ libudev-sys = { path = "dom/webauthn/libudev-sys" }
 packed_simd = { git = "https://github.com/hsivonen/packed_simd", branch = "rust_1_32" }
 rlbox_lucet_sandbox = { git = "https://github.com/PLSysSec/rlbox_lucet_sandbox/", rev="6ddc15b70f0d902241742fd55c689649cad100f8" }
 nix = { git = "https://github.com/shravanrn/nix/", branch = "r0.13.1", rev="4af6c367603869a30fddb5ffb0aba2b9477ba92e" }
-spirv_cross = { git = "https://github.com/kvark/spirv_cross", branch = "wgpu" }
+spirv_cross = { git = "https://github.com/kvark/spirv_cross", branch = "wgpu", rev = "9cb4de489bf80b2b23efffe5a79afb7db6247ba4" }
 # failure's backtrace feature might break our builds, see bug 1608157.
 failure = { git = "https://github.com/badboy/failure", rev = "64af847bc5fdcb6d2438bec8a6030812a80519a5" }
 failure_derive = { git = "https://github.com/badboy/failure", rev = "64af847bc5fdcb6d2438bec8a6030812a80519a5" }