Add IIO_TRIGGER, IIO_BUFFERED_TRIGGER to config

* Sets IIO_TRIGGER and defines IIO_BUFFERED_TRIGGER as a module.

Change-Id: Ic21588c86a242a11cd6d1c1f3e892d0602962b66
diff --git a/debian/defconfig b/debian/defconfig
index 41a0c7e..a5131f1 100644
--- a/debian/defconfig
+++ b/debian/defconfig
@@ -155,6 +155,8 @@
 
 CONFIG_IIO=m
 CONFIG_IIO_BUFFER=y
+CONFIG_IIO_TRIGGER=y
+CONFIG_IIO_TRIGGERED_BUFFER=m
 
 CONFIG_GPIO_PI4IOE5V6408=m
 CONFIG_TPU_AKIRA=m