wifi: Add client connected callback

Add client connected callback support on hostapd HIDL interface

Bug: 163288112
Test: Manuel Test. Hotspot works normally.
Test: atest VtsHalWifiHostapdV1_0TargetTest
Test: atest VtsHalWifiHostapdV1_1TargetTest
Test: atest VtsHalWifiHostapdV1_2TargetTest
Change-Id: Ib0a41b3ef4a46c7c4bf1ed6e01b31ce3a334a213
diff --git a/wifi/hostapd/1.3/IHostapd.hal b/wifi/hostapd/1.3/IHostapd.hal
index 7ac20e4..d16448d 100644
--- a/wifi/hostapd/1.3/IHostapd.hal
+++ b/wifi/hostapd/1.3/IHostapd.hal
@@ -18,8 +18,8 @@
 
 import @1.2::IHostapd;
 import @1.2::HostapdStatus;
-
 import IHostapdCallback;
+
 /**
  * Top-level object for managing SoftAPs.
  */
@@ -39,6 +39,5 @@
      *     |HostapdStatusCode.SUCCESS|,
      *     |HostapdStatusCode.FAILURE_UNKNOWN|
      */
-    registerCallback_1_3(IHostapdCallback callback)
-        generates (HostapdStatus status);
+    registerCallback_1_3(IHostapdCallback callback) generates (HostapdStatus status);
 };