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
diff --git a/AconfigFlags.bp b/AconfigFlags.bp
index db51537..4e84a3c 100644
--- a/AconfigFlags.bp
+++ b/AconfigFlags.bp
@@ -20,6 +20,7 @@
     ":android.hardware.flags-aconfig-java{.generated_srcjars}",
     ":android.hardware.radio.flags-aconfig-java{.generated_srcjars}",
     ":android.location.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.os.vibrator.flags-aconfig-java{.generated_srcjars}",
@@ -567,6 +568,19 @@
     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"],
+}
+
 // DevicePolicy
 aconfig_declarations {
     name: "device_policy_aconfig_flags",
diff --git a/core/java/android/net/vcn/flags.aconfig b/core/java/android/net/vcn/flags.aconfig
new file mode 100644
index 0000000..6956916
--- /dev/null
+++ b/core/java/android/net/vcn/flags.aconfig
@@ -0,0 +1,8 @@
+package: "android.net.vcn"
+
+flag {
+    name: "safe_mode_config"
+    namespace: "vcn"
+    description: "Feature flag for safe mode configurability"
+    bug: "276358140"
+}
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