wpa_supplicant(hidl): Turn on HIDL control interface

Since kernel changes for HIDL are in the necessary branches now, turn on
wpa_supplicant's HIDL control interface.

Bug: 32511422
Test: Compiles and device is able to connect to a wifi network.
Change-Id: I753ac2f13d55c124dac0d23640fb5e252a6fc821
diff --git a/wpa_supplicant/android.config b/wpa_supplicant/android.config
index 84044fc..2a5c810 100644
--- a/wpa_supplicant/android.config
+++ b/wpa_supplicant/android.config
@@ -326,7 +326,7 @@
 
 # Add support for Hidl control interface
 # Only applicable for Android platforms.
-# CONFIG_CTRL_IFACE_HIDL=y
+CONFIG_CTRL_IFACE_HIDL=y
 
 # Add support for loading EAP methods dynamically as shared libraries.
 # When this option is enabled, each EAP method can be either included