Populate CUDA flags on FreeBSD too, as many other toolchains do.

Summary:
This allows `clang` to be used to compile CUDA programs. Compiled
simple helloworld.cu with this.

Reviewers: dim, emaste, tra, yaxunl, ABataev

Reviewed By: tra

Subscribers: dim, emaste, cfe-commits

Tags: #clang

Differential Revision: https://reviews.llvm.org/D69990
diff --git a/clang/lib/Driver/ToolChains/FreeBSD.cpp b/clang/lib/Driver/ToolChains/FreeBSD.cpp
index 5e2c488..3e5e8a0 100644
--- a/clang/lib/Driver/ToolChains/FreeBSD.cpp
+++ b/clang/lib/Driver/ToolChains/FreeBSD.cpp
@@ -397,6 +397,11 @@
   }
 }
 
+void FreeBSD::AddCudaIncludeArgs(const ArgList &DriverArgs,
+                                 ArgStringList &CC1Args) const {
+  CudaInstallation.AddCudaIncludeArgs(DriverArgs, CC1Args);
+}
+
 Tool *FreeBSD::buildAssembler() const {
   return new tools::freebsd::Assembler(*this);
 }