sipt: Makefile - define KAMAILIO_MOD_INTERFACE

(cherry picked from commit e62fa8f7813a0d22f4db30a99bcee541103f21b3)
(cherry picked from commit c52820bc9c7cccf32993943e0e12dd3703ff0822)

src/modules/sipt/Makefile

@@ -1,7 +1,7 @@
 #
 # sipt module makefile
 #
-# 
+#
 # WARNING: do not run this directly, it should be run by the master Makefile
 
 include ../../Makefile.defs
@@ -10,7 +10,7 @@ NAME=sipt.so
 LIBS=
 
 
-DEFS+=-DOPENSER_MOD_INTERFACE
+DEFS+=-DKAMAILIO_MOD_INTERFACE
 
 
 include ../../Makefile.modules