internal(pystar): use rules_python PyCcLinkParamsProvider if pystar is enabled (#1517)

The PyCcLinkParamsInfo export wasn't respecting the
`config.enable_pystar` setting. This
would cause the Starlark implementation to look up the wrong provider
symbol and result
in an error later.

Work towards #1069

python/py_cc_link_params_info.bzl

diff --git a/python/py_cc_link_params_info.bzl b/python/py_cc_link_params_info.bzl
index 0ebd64b..42d8daf 100644
--- a/python/py_cc_link_params_info.bzl
+++ b/python/py_cc_link_params_info.bzl
@@ -1,3 +1,6 @@
 """Public entry point for PyCcLinkParamsInfo."""
 
-PyCcLinkParamsInfo = PyCcLinkParamsProvider
+load("@rules_python_internal//:rules_python_config.bzl", "config")
+load("//python/private/common:providers.bzl", _starlark_PyCcLinkParamsProvider = "PyCcLinkParamsProvider")
+
+PyCcLinkParamsInfo = _starlark_PyCcLinkParamsProvider if config.enable_pystar else PyCcLinkParamsProvider