Bluetooth GATT callback naming fix "Ext" -> "" (1/2)

Gatt callback don't need the "Ext" postfix, as it was removed from new
API.

Test: manual
Bug: 30622771
Change-Id: I54596ffdcb818343cc313123266cfa16291c6236
diff --git a/Android.mk b/Android.mk
index a07fd01..7f338f9 100644
--- a/Android.mk
+++ b/Android.mk
@@ -128,8 +128,8 @@
 	core/java/android/bluetooth/IBluetoothInputHost.aidl \
 	core/java/android/bluetooth/IBluetoothHidDeviceCallback.aidl \
 	core/java/android/bluetooth/IBluetoothGatt.aidl \
-	core/java/android/bluetooth/IBluetoothGattCallbackExt.aidl \
-	core/java/android/bluetooth/IBluetoothGattServerCallbackExt.aidl \
+	core/java/android/bluetooth/IBluetoothGattCallback.aidl \
+	core/java/android/bluetooth/IBluetoothGattServerCallback.aidl \
 	core/java/android/bluetooth/le/IAdvertiserCallback.aidl \
 	core/java/android/bluetooth/le/IAdvertisingSetCallback.aidl \
 	core/java/android/bluetooth/le/IPeriodicAdvertisingCallback.aidl \