Adds API to register callback for soft AP event

Bug: 68712383
Test: frameworks/opt/net/wifi/tests/wifitests/runtests.sh
Change-Id: I270366494500251858fe2ddf6209c7b4bfb5f546
diff --git a/Android.bp b/Android.bp
index ae4f974..0c493ad 100644
--- a/Android.bp
+++ b/Android.bp
@@ -547,6 +547,7 @@
         "telephony/java/com/android/internal/telephony/euicc/ISetDefaultSmdpAddressCallback.aidl",
         "telephony/java/com/android/internal/telephony/euicc/ISetNicknameCallback.aidl",
         "telephony/java/com/android/internal/telephony/euicc/ISwitchToProfileCallback.aidl",
+        "wifi/java/android/net/wifi/ISoftApCallback.aidl",
         "wifi/java/android/net/wifi/IWifiManager.aidl",
         "wifi/java/android/net/wifi/aware/IWifiAwareDiscoverySessionCallback.aidl",
         "wifi/java/android/net/wifi/aware/IWifiAwareEventCallback.aidl",