sdm670:power: Turn on/off display

PowerHAL writes to a sysfs node when it gets display on/off notification.

Change-Id: I58d604cf4fae169f4c9af1ae683c6f7380432220
diff --git a/Android.mk b/Android.mk
index 748030b..baa5535 100644
--- a/Android.mk
+++ b/Android.mk
@@ -62,6 +62,14 @@
 LOCAL_SRC_FILES += power-845.c
 endif
 
+ifeq ($(call is-board-platform-in-list,sdm670), true)
+LOCAL_SRC_FILES += power-670.c
+endif
+
+ifeq ($(call is-board-platform-in-list,qcs605), true)
+LOCAL_SRC_FILES += power-670.c
+endif
+
 ifeq ($(TARGET_USES_INTERACTION_BOOST),true)
     LOCAL_CFLAGS += -DINTERACTION_BOOST
 endif