Move force_two_phase field from BTS to PCU

Change-Id: I68a6e032f725cde87992b99f039c5280e912faf7
diff --git a/src/gprs_pcu.h b/src/gprs_pcu.h
index 9696e96..4920966 100644
--- a/src/gprs_pcu.h
+++ b/src/gprs_pcu.h
@@ -74,6 +74,7 @@
 		bool force_initial_mcs;	/* false=use from BTS true=use from VTY */
 		uint8_t max_cs_dl, max_cs_ul;
 		uint8_t max_mcs_dl, max_mcs_ul;
+		uint8_t force_two_phase;
 	} vty;
 
 	struct gsmtap_inst *gsmtap;