Cleanup: CMake: Modernize bf_rna dependencies

Pretty straightforward

- Remove any bf_rna paths from INC
- Add a dependency though LIB when missing

context: https://devtalk.blender.org/t/cmake-cleanup/30260

Pull Request: https://projects.blender.org/blender/blender/pulls/132413

source/blender/python/generic/CMakeLists.txt

@@ -4,7 +4,6 @@
 
 set(INC
   .
-  ../../makesrna
 )
 
 set(INC_SYS
@@ -45,6 +44,7 @@ set(LIB
   PRIVATE bf::gpu
   PRIVATE bf::intern::clog
   PRIVATE bf::intern::guardedalloc
+  PRIVATE bf::rna
 )
 
 # NOTE: use irrespective of `WITH_OPENGL_BACKEND` as the `bgl` module uses this for constants.

source/blender/python/intern/CMakeLists.txt

@@ -6,11 +6,8 @@ set(INC
   ..
   ../../editors/include
   ../../imbuf/intern/oiio
-  ../../makesrna
   ../../../../intern/mantaflow/extern
   ../../../../intern/opencolorio
-  # RNA_prototypes.hh
-  ${CMAKE_BINARY_DIR}/source/blender/makesrna
 )
 
 set(INC_SYS
@@ -132,6 +129,7 @@ set(LIB
 
   ${PYTHON_LINKFLAGS}
   ${PYTHON_LIBRARIES}
+  PRIVATE bf::rna
   PRIVATE bf::windowmanager
 )
 
@@ -376,5 +374,3 @@ endif()
 
 blender_add_lib(bf_python "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
 
-# RNA_prototypes.hh
-add_dependencies(bf_python bf_rna)