[datapipe] Cache ambient_light_poll_pipe output value

Ambient light poll state can be modified by the filter, thus caching the
original input can lead to subtle errors in case the datapipe value is
queried directly.

Switch to caching filtered output value.

Signed-off-by: Simo Piiroinen <simo.piiroinen@jollamobile.com>

modules/filter-brightness-als.c

@@ -1854,7 +1854,7 @@ fba_sensorpoll_timer_cb(gpointer aptr)
     fba_sensorpoll_timer_id = 0;
     execute_datapipe(&ambient_light_poll_pipe,
                      GINT_TO_POINTER(false),
-                     USE_INDATA, CACHE_INDATA);
+                     USE_INDATA, CACHE_OUTDATA);
 EXIT:
     return FALSE;
 }

tklock.c

@@ -2608,7 +2608,7 @@ static void tklock_lidfilter_rethink_lid_state(void)
     if( lid_cover_sensor_state != COVER_UNDEF ) {
         execute_datapipe(&ambient_light_poll_pipe,
                          GINT_TO_POINTER(TRUE),
-                         USE_INDATA, CACHE_INDATA);
+                         USE_INDATA, CACHE_OUTDATA);
     }
 
     switch( lid_cover_sensor_state ) {