Disable use_resource_processor when producing a shared library

Passing --shared-lib to aapt2 causes it to add an extra
onResourcesLoaded method that rewrites resources IDs to include
the package ID determined at runtime.  ResourceProcessorBusyBox
has no equivalent functionality, so disable whenever --shared-lib
is found in aaptflags for now.

Fixes: 330646473
Bug: 331641946
Test: manual
Change-Id: Ibb0c2c7bf7a41ab294f5c84b4b6018cc8a63b0f4
diff --git a/java/aar.go b/java/aar.go
index 1734da9..1c03594 100644
--- a/java/aar.go
+++ b/java/aar.go
@@ -164,7 +164,9 @@
 }
 
 func (a *aapt) useResourceProcessorBusyBox(ctx android.BaseModuleContext) bool {
-	return BoolDefault(a.aaptProperties.Use_resource_processor, ctx.Config().UseResourceProcessorByDefault())
+	return BoolDefault(a.aaptProperties.Use_resource_processor, ctx.Config().UseResourceProcessorByDefault()) &&
+		// TODO(b/331641946): remove this when ResourceProcessorBusyBox supports generating shared libraries.
+		!slices.Contains(a.aaptProperties.Aaptflags, "--shared-lib")
 }
 
 func (a *aapt) filterProduct() string {