Add aconfig for Wifi non-updatable part

Bug: 301145404
Test: Manual STA-AP connection & confirmed from the logs that cross-akm
      feature support is obtained via wificond
Test: atest WifiNl80211ManagerTest DeviceWiphyCapabilitiesTest
Change-Id: Ia1f2fe60c2e0044b65d9b6fb3d05b15638196980
diff --git a/AconfigFlags.bp b/AconfigFlags.bp
index b0bebe5..0ee7ace 100644
--- a/AconfigFlags.bp
+++ b/AconfigFlags.bp
@@ -38,6 +38,7 @@
     ":android.multiuser.flags-aconfig-java{.generated_srcjars}",
     ":android.net.platform.flags-aconfig-java{.generated_srcjars}",
     ":android.net.vcn.flags-aconfig-java{.generated_srcjars}",
+    ":android.net.wifi.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}",
@@ -111,6 +112,7 @@
         "android.multiuser.flags-aconfig",
         "android.net.platform.flags-aconfig",
         "android.net.vcn.flags-aconfig",
+        "android.net.wifi.flags-aconfig",
         "android.nfc.flags-aconfig",
         "android.os.flags-aconfig",
         "android.os.vibrator.flags-aconfig",
@@ -1103,3 +1105,21 @@
     aconfig_declarations: "backup_flags",
     defaults: ["framework-minus-apex-aconfig-java-defaults"],
 }
+
+// Wifi
+aconfig_declarations {
+    name: "android.net.wifi.flags-aconfig",
+    package: "android.net.wifi.flags",
+    srcs: ["wifi/*.aconfig"],
+}
+
+java_aconfig_library {
+    name: "android.net.wifi.flags-aconfig-java",
+    aconfig_declarations: "android.net.wifi.flags-aconfig",
+    min_sdk_version: "30",
+    apex_available: [
+        "//apex_available:platform",
+        "com.android.wifi",
+    ],
+    defaults: ["framework-minus-apex-aconfig-java-defaults"],
+}
diff --git a/wifi/wifi.aconfig b/wifi/wifi.aconfig
new file mode 100644
index 0000000..6ac986e
--- /dev/null
+++ b/wifi/wifi.aconfig
@@ -0,0 +1,9 @@
+package: "android.net.wifi.flags"
+
+flag {
+    name: "get_device_cross_akm_roaming_support"
+    namespace: "wifi"
+    description: "Add new API to get the device support for CROSS-AKM roaming"
+    bug: "313038031"
+    is_fixed_read_only: true
+}