sm8450-common: rootdir: wpa_supplicant(aidl): Add support for starting AIDL lazily

Able to start supplicant from framework using
ISupplicant.getService() in init_qcom.rc.

Change-Id: Ia4efd2a71916fef88835ba5df2fefc1d403895a1
CRs-Fixed: 3591871
(cherry picked from commit eeac14f4c6e1a8d984b1556cedb2f1b2bef93663)

rootdir/etc/init.qcom.rc

@@ -521,6 +521,7 @@ service wpa_supplicant /vendor/bin/hw/wpa_supplicant \
 #   after setting up the capabilities required for WEXT
 #   user wifi
 #   group wifi inet keystore
+    interface aidl android.hardware.wifi.supplicant.ISupplicant/default
     interface [email protected]::ISupplicant default
     interface [email protected]::ISupplicant default
     class main