Convert SetProvider to generic providers API

Convert all of the callers of SetProvider to use the type-safe
android.SetProvider API.

Bug: 316410648
Test: builds
Change-Id: If58f4b5355264ddab2045bc3591a4eac19cd58fc
diff --git a/multitree/api_imports.go b/multitree/api_imports.go
index e4c21f8..51b9e07 100644
--- a/multitree/api_imports.go
+++ b/multitree/api_imports.go
@@ -81,7 +81,7 @@
 	headerLibs := generateNameMapWithSuffix(imports.properties.Header_libs)
 	apexSharedLibs := generateNameMapWithSuffix(imports.properties.Apex_shared_libs)
 
-	ctx.SetProvider(ApiImportsProvider, ApiImportInfo{
+	android.SetProvider(ctx, ApiImportsProvider, ApiImportInfo{
 		SharedLibs:     sharedLibs,
 		HeaderLibs:     headerLibs,
 		ApexSharedLibs: apexSharedLibs,