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/bazel/configurability.go b/bazel/configurability.go
index d962a1d..671e5c1 100644
--- a/bazel/configurability.go
+++ b/bazel/configurability.go
@@ -67,7 +67,7 @@
 
 	ConditionsDefaultSelectKey = "//conditions:default"
 
-	productVariableBazelPackage = "//build/bazel/product_variables"
+	productVariableBazelPackage = "//build/bazel/product_config/config_settings"
 
 	AndroidAndInApex = "android-in_apex"
 	AndroidPlatform  = "system"