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/cc/Android.bp b/cc/Android.bp
index a7b6d81..3b29ae8 100644
--- a/cc/Android.bp
+++ b/cc/Android.bp
@@ -122,3 +122,31 @@
     // Used by plugins
     visibility: ["//visibility:public"],
 }
+
+phony {
+    name: "llndk_libs",
+    required: [
+        "libEGL",
+        "libGLESv1_CM",
+        "libGLESv2",
+        "libGLESv3",
+        "libRS",
+        "libandroid_net",
+        "libapexsupport",
+        "libbinder_ndk",
+        "libc",
+        "libcgrouprc",
+        "libclang_rt.asan",
+        "libdl",
+        "libft2",
+        "liblog",
+        "libm",
+        "libmediandk",
+        "libnativewindow",
+        "libselinux",
+        "libsync",
+        "libvendorsupport",
+        "libvndksupport",
+        "libvulkan",
+    ],
+}