Bluetooth: Controller: Fix regression in Code PHY S2 Rx to any PHY Tx

Fix regression in Coded PHY S2 reception to any other PHY Tx
in the s/w switch implementation.

Regression in commit 55b7dba8 ("Bluetooth: Controller:
Refactor sw_switch hal interface use").

Signed-off-by: Vinayak Kariappa Chettimada <vich@nordicsemi.no>