[CMake] llvm-as depends on intrinsics_gen

llvm-as.cpp has the following include chain:

llvm/Bitcode/BitcodeWriter.h
llvm/IR/ModuleSummaryIndex.h
llvm/IR/Module.h
llvm/IR/Function.h
llvm/IR/Argument.h
llvm/IR/Attributes.h
llvm/IR/Attributes.gen

This means llvm-as needs to depend on intrinsics_gen.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@287423 91177308-0d34-0410-b5e6-96231b3b80d8

tools/llvm-as/CMakeLists.txt

@@ -7,4 +7,7 @@ set(LLVM_LINK_COMPONENTS
 
 add_llvm_tool(llvm-as
   llvm-as.cpp
+
+  DEPENDS
+  intrinsics_gen
   )