gtpu_kpi: use ?ENV_DEFAULT_GTPU_KPI_{TABLE_NAME,INTERVAL}

Change-Id: Ia8194966b20da1adc26c02f416b8ec0508191d98
---
M src/gtpu_kpi.erl
1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/src/gtpu_kpi.erl b/src/gtpu_kpi.erl
index 9432626..309f554 100644
--- a/src/gtpu_kpi.erl
+++ b/src/gtpu_kpi.erl
@@ -49,6 +49,7 @@
 
 -include_lib("kernel/include/logger.hrl").
 
+-include("osmo_s1gw.hrl").
 -include("s1gw_metrics.hrl").
 
 -define(GTPU_PORT, 2152).
@@ -146,8 +147,8 @@
 %% ------------------------------------------------------------------
 
 init([#{enable := true} = Cfg]) ->
-    TName = maps:get(table_name, Cfg, "osmo-s1gw"),
-    Interval = maps:get(interval, Cfg, 3000),
+    TName = maps:get(table_name, Cfg, ?ENV_DEFAULT_GTPU_KPI_TABLE_NAME),
+    Interval = maps:get(interval, Cfg, ?ENV_DEFAULT_GTPU_KPI_INTERVAL),
     %% flush the table, in case it remained
     %% it may not exist, so we ignore the result
     nft_flush_table(TName),

