Convert Provider to generic providers API

Convert all of the callers of Provider/HasProvider to use the type-safe
android.ModuleProvider API.

Bug: 316410648
Test: builds

Change-Id: I73479de1625fa2865b6c73444cd477e50d56dc5a
diff --git a/android/deapexer.go b/android/deapexer.go
index a674b42..e5dd277 100644
--- a/android/deapexer.go
+++ b/android/deapexer.go
@@ -167,7 +167,7 @@
 	if di != nil {
 		return di
 	}
-	ai := ctx.Provider(ApexInfoProvider).(ApexInfo)
+	ai, _ := ModuleProvider(ctx, ApexInfoProvider)
 	ctx.ModuleErrorf("No prebuilt APEX provides a deapexer module for APEX variant %s", ai.ApexVariationName)
 	return nil
 }