[nrf fromtree] Bluetooth: Controller: Fix PHY value in HCI LE CIS Established Event

Fix PHY_C_TO_P and PHY_P_TO_C value in HCI LE CIS
Established Event.

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>
(cherry picked from commit e4cc583)
Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>

Author: cvinayak

subsys/bluetooth/controller/hci/hci.c

@@ -4245,8 +4245,8 @@ static void le_cis_established(struct pdu_data *pdu_data,
 	sys_put_le24(cis->sync_delay, sep->cis_sync_delay);
 	sys_put_le24(cig->c_latency, sep->c_latency);
 	sys_put_le24(cig->p_latency, sep->p_latency);
-	sep->c_phy = lll_cis_c->phy;
-	sep->p_phy = lll_cis_p->phy;
+	sep->c_phy = find_lsb_set(lll_cis_c->phy);
+	sep->p_phy = find_lsb_set(lll_cis_p->phy);
 	sep->nse = lll_cis->nse;
 	sep->c_bn = lll_cis_c->bn;
 	sep->p_bn = lll_cis_p->bn;