Bluetooth: Controller: nRF51x: Enable Privacy Support

Enable Privacy Support, upto 2 bonds tested to have
no issues when using a modified peripheral_accept_list.

Relates to commit 93ca60b ("Bluetooth: controller:
Require nRF52 for privacy").

Signed-off-by: Vinayak Kariappa Chettimada <[email protected]>

Author: cvinayak

subsys/bluetooth/controller/Kconfig.ll_sw_split

@@ -23,7 +23,6 @@ config BT_LLL_VENDOR_NORDIC
 					 !BT_CTLR_DATA_LENGTH_CLEAR && \
 					 !BT_CTLR_PHY_2M_NRF
 	select BT_CTLR_PRIVACY_SUPPORT if BT_CTLR_CRYPTO_SUPPORT && \
-					  !SOC_SERIES_NRF51X && \
 					  !SOC_COMPATIBLE_NRF54LX
 	select BT_CTLR_CONN_PARAM_REQ_SUPPORT
 	select BT_CTLR_EXT_REJ_IND_SUPPORT