Add input HAL header.

Change-Id: Ia959dd1d1adf024459d2423fc9d59a811466e53c
diff --git a/modules/Android.mk b/modules/Android.mk
index 13a0b5b..9f7e5f0 100644
--- a/modules/Android.mk
+++ b/modules/Android.mk
@@ -1,4 +1,4 @@
 hardware_modules := gralloc hwcomposer audio nfc nfc-nci local_time \
 	power usbaudio audio_remote_submix camera usbcamera consumerir sensors vibrator \
-	tv_input fingerprint
+	tv_input fingerprint input
 include $(call all-named-subdir-makefiles,$(hardware_modules))