Add a flag for VCN safe mode configurability

Add aconfig for VCN feature flags and the flag for VCN
safe mode configurability

Bug: 276358140
Test: verified flags are accessible
Change-Id: I4a54445a4238c81a409604be16c90ef341eed638
Merged-In: I4a54445a4238c81a409604be16c90ef341eed638

AconfigFlags.bp

@@ -15,6 +15,7 @@
 aconfig_srcjars = [
     ":android.content.pm.flags-aconfig-java{.generated_srcjars}",
     ":android.hardware.biometrics.flags-aconfig-java{.generated_srcjars}",
+    ":android.net.vcn.flags-aconfig-java{.generated_srcjars}",
     ":android.nfc.flags-aconfig-java{.generated_srcjars}",
     ":android.os.flags-aconfig-java{.generated_srcjars}",
     ":android.security.flags-aconfig-java{.generated_srcjars}",
@@ -186,3 +187,16 @@ java_aconfig_library {
     aconfig_declarations: "com.android.net.flags-aconfig",
     defaults: ["framework-minus-apex-aconfig-java-defaults"],
 }
+
+// VCN
+aconfig_declarations {
+    name: "android.net.vcn.flags-aconfig",
+    package: "android.net.vcn",
+    srcs: ["core/java/android/net/vcn/*.aconfig"],
+}
+
+java_aconfig_library {
+    name: "android.net.vcn.flags-aconfig-java",
+    aconfig_declarations: "android.net.vcn.flags-aconfig",
+    defaults: ["framework-minus-apex-aconfig-java-defaults"],
+}

core/java/android/net/vcn/flags.aconfig

+package: "android.net.vcn"
+
+flag {
+    name: "safe_mode_config"
+    namespace: "vcn"
+    description: "Feature flag for safe mode configurability"
+    bug: "276358140"
+}
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