[LLVM] Fix linking object library in tablegen

Summary:
The patch #80847 introduced
some changes to how we build tablegen. Some files weren't build included
properly on my build. We don't need to fish out the objects directly
from an object library build, we can simply add it to the link libraries
and CMake will include them for you. This fixed the issue of missings
defs for me and is more canonical.

Author: jhuber6

llvm/utils/TableGen/Common/CMakeLists.txt

@@ -33,7 +33,9 @@ add_llvm_library(LLVMTableGenCommon STATIC OBJECT EXCLUDE_FROM_ALL
   SubtargetFeatureInfo.cpp
   Types.cpp
   VarLenCodeEmitterGen.cpp
-  $<TARGET_OBJECTS:obj.LLVMTableGenBasic>
+
+  LINK_LIBS
+  LLVMTableGenBasic
 
   DEPENDS
   vt_gen