Add a phony module for llndk libraries

Also removed unnecessary dep from system image generation

Test: CI and soong_generated_system_filesystem_test
Bug: 376493222
Change-Id: I73b320c24f4dae95d70cb8c783275511033eaeeb
diff --git a/fsgen/fsgen_mutators.go b/fsgen/fsgen_mutators.go
index bf07ab3..f3aec00 100644
--- a/fsgen/fsgen_mutators.go
+++ b/fsgen/fsgen_mutators.go
@@ -15,11 +15,12 @@
 package fsgen
 
 import (
-	"android/soong/android"
 	"fmt"
 	"slices"
 	"sync"
 
+	"android/soong/android"
+
 	"github.com/google/blueprint/proptools"
 )
 
@@ -113,7 +114,6 @@
 					"dex_bootjars":                              defaultDepCandidateProps(ctx.Config()),
 					"framework_compatibility_matrix.device.xml": defaultDepCandidateProps(ctx.Config()),
 					"init.environ.rc-soong":                     defaultDepCandidateProps(ctx.Config()),
-					"libclang_rt.asan":                          defaultDepCandidateProps(ctx.Config()),
 					"libcompiler_rt":                            defaultDepCandidateProps(ctx.Config()),
 					"libdmabufheap":                             defaultDepCandidateProps(ctx.Config()),
 					"libgsi":                                    defaultDepCandidateProps(ctx.Config()),