Store the min callback interface version
in the Vendor HAL.

Allows us to check if new callback methods
can be invoked.

Bug: 336376538
Test: m
Change-Id: Iddf334d3631f4b3a1c61808aaf658d3c5d6f4bee
diff --git a/wifi/aidl/default/wifi_nan_iface.h b/wifi/aidl/default/wifi_nan_iface.h
index a49ae8c..d2d1d5c 100644
--- a/wifi/aidl/default/wifi_nan_iface.h
+++ b/wifi/aidl/default/wifi_nan_iface.h
@@ -134,6 +134,8 @@
     ndk::ScopedAStatus suspendRequestInternal(char16_t in_cmdId, int8_t sessionId);
     ndk::ScopedAStatus resumeRequestInternal(char16_t in_cmdId, int8_t sessionId);
 
+    int32_t getMinCallbackVersion();
+
     // Overridden in the gTest suite.
     virtual std::set<std::shared_ptr<IWifiNanIfaceEventCallback>> getEventCallbacks();