Make the enabled property configurable

This allows using select statements with it.

Ignore-AOSP-First: This needs to be in a topic with changes in interal-only repositories, I'll cherrypick to aosp after.
Bug: 323382414
Test: m nothing --no-skip-soong-tests
Change-Id: I6f3efaaa3d82505e38a91ee4ba0e18e404360191
diff --git a/genrule/genrule.go b/genrule/genrule.go
index 43f4fe5..e7d895a 100644
--- a/genrule/genrule.go
+++ b/genrule/genrule.go
@@ -299,7 +299,7 @@
 				case android.HostToolProvider:
 					// A HostToolProvider provides the path to a tool, which will be copied
 					// into the sandbox.
-					if !t.(android.Module).Enabled() {
+					if !t.(android.Module).Enabled(ctx) {
 						if ctx.Config().AllowMissingDependencies() {
 							ctx.AddMissingDependencies([]string{tool})
 						} else {