Cleanup: CMake: Modernize bf_guardedalloc dependencies

Pretty straightforward

- Removes any guardedalloc paths from INC
- Adds a dependency though LIB

Pull Request: https://projects.blender.org/blender/blender/pulls/109925

intern/opensubdiv/CMakeLists.txt

@@ -4,7 +4,6 @@
 
 set(INC
   .
-  ../guardedalloc
 )
 
 set(INC_SYS
@@ -19,6 +18,7 @@ set(SRC
 )
 
 set(LIB
+  PRIVATE bf::intern::guardedalloc
 )
 
 if(WITH_OPENSUBDIV)