Make libfstab available to APEXes.

The ART module needs this library to determine whether to put dexopt
artifacts in dalvik-cache.

Bug: 287958783
Test: m
Change-Id: Idf338702d4f54e9c40c0692ea29e7d83e91aca38
diff --git a/fs_mgr/Android.bp b/fs_mgr/Android.bp
index dd61272..bbd068b 100644
--- a/fs_mgr/Android.bp
+++ b/fs_mgr/Android.bp
@@ -181,6 +181,10 @@
     ramdisk_available: true,
     vendor_ramdisk_available: true,
     recovery_available: true,
+    apex_available: [
+        "//apex_available:anyapex",
+        "//apex_available:platform",
+    ],
     host_supported: true,
     defaults: ["fs_mgr_defaults"],
     srcs: [
@@ -206,6 +210,7 @@
         "libbase_headers",
         "libgsi_headers",
     ],
+    min_sdk_version: "31",
 }
 
 cc_binary {