Make bp2build-generated selects() based on product config build settings

...instead of based on constraint settings.

Bug: 269577299
Test: m nothing and ./build/bazel/ci/bp2build.sh
Change-Id: Ib9caec79c92b8fd304e46be841de5612bd1637e3
diff --git a/bp2build/apex_conversion_test.go b/bp2build/apex_conversion_test.go
index 84c7ea2..2383247 100644
--- a/bp2build/apex_conversion_test.go
+++ b/bp2build/apex_conversion_test.go
@@ -1555,7 +1555,7 @@
 				"file_contexts": `":foo-file_contexts"`,
 				"manifest":      `"apex_manifest.json"`,
 				"min_sdk_version": `select({
-        "//build/bazel/product_variables:android__library_linking_strategy__prefer_static": "30",
+        "//build/bazel/product_config/config_settings:android__library_linking_strategy__prefer_static": "30",
         "//conditions:default": "31",
     })`,
 				"package_name": `"pkg_name"`,
@@ -1564,7 +1564,7 @@
 				"file_contexts":  `":foo-file_contexts"`,
 				"manifest":       `"apex_manifest.json"`,
 				"min_sdk_version": `select({
-        "//build/bazel/product_variables:android__library_linking_strategy__prefer_static": "30",
+        "//build/bazel/product_config/config_settings:android__library_linking_strategy__prefer_static": "30",
         "//conditions:default": "31",
     })`,
 				"package_name": `"override_pkg_name"`,