binder: Turn on the compile flag for binder

BUG: 30074832
Change-Id: Ic59c7fda1c19ffd1d0b6263cbef5d8386ec15d25
TEST: Compiles
diff --git a/wpa_supplicant/android.config b/wpa_supplicant/android.config
index 02505bb..50c1958 100644
--- a/wpa_supplicant/android.config
+++ b/wpa_supplicant/android.config
@@ -326,7 +326,7 @@
 
 # Add support for Binder control interface
 # Only applicable for Android platforms.
-#CONFIG_CTRL_IFACE_BINDER=y
+CONFIG_CTRL_IFACE_BINDER=y
 
 # Add support for loading EAP methods dynamically as shared libraries.
 # When this option is enabled, each EAP method can be either included