https://ci.chromium.org/p/chromium/builders/ci/UBSan%20vptr%20Release

ERROR at //third_party/swiftshader/third_party/llvm-10.0/BUILD.gn:132:5: Undefined identifier.
    sources += [ "llvm/lib/Target/ARM/MCTargetDesc/ARMTargetStreamer.cpp" ]
    ^------

Bug: b/152339534
Change-Id: I59ae43c44ed22b95c836188897497723adcb9a23
Reviewed-on: https://swiftshader-review.googlesource.com/c/SwiftShader/+/46668Reviewed-by: Nicolas Capens <nicolascapens@google.com>
Tested-by: Nicolas Capens <nicolascapens@google.com>