bluetooth: samples: rreq: Change procedure PHY to 2M

This makes some sense because the ACL connection is on 2M by default
(due to automatic PHY updates initiated by the host).

Now if you change the tx_power_delta it doesn't fail due to PHY mismatch

Signed-off-by: Olivier Lesage <[email protected]>

Author: olivier-le-sage

samples/bluetooth/channel_sounding_ras_initiator/src/main.c

@@ -679,7 +679,7 @@ int main(void)
 		.min_subevent_len = 60000,
 		.max_subevent_len = 60000,
 		.tone_antenna_config_selection = BT_LE_CS_TONE_ANTENNA_CONFIGURATION_A1_B1,
-		.phy = BT_LE_CS_PROCEDURE_PHY_1M,
+		.phy = BT_LE_CS_PROCEDURE_PHY_2M,
 		.tx_power_delta = 0x80,
 		.preferred_peer_antenna = BT_LE_CS_PROCEDURE_PREFERRED_PEER_ANTENNA_1,
 		.snr_control_initiator = BT_LE_CS_SNR_CONTROL_NOT_USED,