[nrf noup] Bluetooth: update experimental for qualification

Update Kconfig options for qualification:
 - Remove experimental on qualified feature.
 - Add experimental on unqualified feature.

Signed-off-by: Joakim Andersson <[email protected]>
Signed-off-by: Trond Einar Snekvik <[email protected]>
Signed-off-by: Martí Bolívar <[email protected]>
Signed-off-by: Robert Lubos <[email protected]>
Signed-off-by: Dominik Ermel <[email protected]>
Signed-off-by: Ingar Kulbrandstad <[email protected]>
(cherry picked from commit fd84806)
(cherry picked from commit fec8aa6)
(cherry picked from commit cc64111)

Author: joerchan

subsys/bluetooth/Kconfig.adv

@@ -5,8 +5,7 @@
 # SPDX-License-Identifier: Apache-2.0
 
 config BT_EXT_ADV
-	bool "Extended Advertising and Scanning support [EXPERIMENTAL]"
-	select EXPERIMENTAL
+	bool "Extended Advertising and Scanning support"
 	help
 	  Select this to enable Extended Advertising API support.
 	  This enables support for advertising with multiple advertising sets,

subsys/bluetooth/controller/Kconfig

@@ -95,7 +95,8 @@ choice BT_LL_CHOICE
 	  Select the Bluetooth Link Layer to compile.
 
 config BT_LL_SW_SPLIT
-	bool "Software-based BLE Link Layer"
+	bool "Software-based BLE Link Layer [EXPERIMENTAL]"
+	select EXPERIMENTAL
 	select ENTROPY_GENERATOR
 	select NRF_HW_TIMER0_RESERVED
 	select NRF_HW_RTC0_RESERVED

subsys/bluetooth/host/Kconfig.l2cap

@@ -48,7 +48,8 @@ config BT_L2CAP_DYNAMIC_CHANNEL
 	  allowing the creation of dynamic L2CAP Channels.
 
 config BT_L2CAP_ECRED
-	bool "L2CAP Enhanced Credit Based Flow Control support"
+	bool "L2CAP Enhanced Credit Based Flow Control support [EXPERIMENTAL]"
+	select EXPERIMENTAL
 	depends on BT_L2CAP_DYNAMIC_CHANNEL
 	help
 	  This option enables support for LE Connection oriented Channels with