[CMake] llvm-stress depends on intrinsics_gen

[CMake] llvm-stress depends on intrinsics_gen

llvm-stress.cpp has the following include chain:

llvm/Analysis/CallGraphSCCPass.h
llvm/Analysis/CallGraph.h
llvm/IR/CallSite.h
llvm/IR/Attributes.h
llvm/IR/Attributes.gen

This means llvm-stress needs to depend on intrinsics_gen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287426 91177308-0d34-0410-b5e6-96231b3b80d8