Pass gprs_rlcmac_pdch to tbf_is_control_ts

This will allow also validate easily the TRX is the correct one too, not
only the TS number in any random TRX.

Change-Id: Ib1a62b6e7b465253ee7cba63bf5e277f8aa8eaea
diff --git a/src/tbf.h b/src/tbf.h
index 8155e1d..211b8a7 100644
--- a/src/tbf.h
+++ b/src/tbf.h
@@ -146,7 +146,7 @@
 void tbf_poll_timeout(struct gprs_rlcmac_tbf *tbf, struct gprs_rlcmac_pdch *pdch, uint32_t poll_fn, enum pdch_ulc_tbf_poll_reason reason);
 void tbf_update_state_fsm_name(struct gprs_rlcmac_tbf *tbf);
 const char* tbf_rlcmac_diag(const struct gprs_rlcmac_tbf *tbf);
-bool tbf_is_control_ts(const struct gprs_rlcmac_tbf *tbf, uint8_t ts);
+bool tbf_is_control_ts(const struct gprs_rlcmac_tbf *tbf, const struct gprs_rlcmac_pdch *pdch);
 bool tbf_can_upgrade_to_multislot(const struct gprs_rlcmac_tbf *tbf);
 int tbf_update(struct gprs_rlcmac_tbf *tbf);
 struct gprs_rlcmac_trx *tbf_get_trx(struct gprs_rlcmac_tbf *tbf);
@@ -211,8 +211,6 @@
 	uint8_t dl_slots() const;
 	uint8_t ul_slots() const;
 
-	bool is_control_ts(uint8_t ts) const;
-
 	/* EGPRS */
 	bool is_egprs_enabled() const;