drivers: bluetooth: silabs_efr32: Declare supported features in Kconfig

Now that we enable `HAS_BT_CTLR` we should also declare which optional
features are supported. For now, we only add the features that are
available through the current driver init routine and found on all
supported platforms.

Signed-off-by: Johan Hedberg <[email protected]>

Author: jhedberg

drivers/bluetooth/hci/Kconfig

@@ -127,6 +127,13 @@ config BT_SILABS_EFR32
 	select MBEDTLS_PSA_CRYPTO_C
 	select MBEDTLS_ENTROPY_C
 	select HAS_BT_CTLR
+	select BT_CTLR_PHY_UPDATE_SUPPORT
+	select BT_CTLR_PER_INIT_FEAT_XCHG_SUPPORT
+	select BT_CTLR_DATA_LEN_UPDATE_SUPPORT
+	select BT_CTLR_EXT_REJ_IND_SUPPORT
+	select BT_CTLR_CHAN_SEL_2_SUPPORT
+	select BT_CTLR_CONN_RSSI_SUPPORT
+	select BT_CTLR_ADV_EXT_SUPPORT
 	help
 	  Use Silicon Labs binary Bluetooth library to connect to the
 	  controller.