[nrf temphack] Bluetooth: controller: Default to legacy

Default to the legacy controller since our downstream apps won't build
with the nRF or Split controllers yet.

Signed-off-by: Carles Cufi <[email protected]>
(cherry picked from commit 9de1096)
Signed-off-by: Martí Bolívar <[email protected]>

Author: carlescufi

subsys/bluetooth/controller/Kconfig

@@ -16,6 +16,7 @@ if BT_CTLR
 
 choice BT_LL_CHOICE
 	prompt "Bluetooth Link Layer Selection"
+	default BT_LL_SW_LEGACY
 	help
 	  Select the Bluetooth Link Layer to compile.