fix(nimble): Add support for VSC to clear legacy adv memory

Legacy adv does not have an API for clear adv memory in controller.
 Added VSC for same.

components/bt/host/nimble/nimble

@@ -1 +1 @@
-Subproject commit 986b306392b0085f2fe9eed9ee7ad788387c0c0e
+Subproject commit 7b29fd8040b7c21b4aebccb19daaabd8b6713b5b

components/bt/porting/nimble/include/nimble/hci_common.h

@@ -1149,8 +1149,10 @@ struct ble_hci_vs_duplicate_exception_list_cp {
     uint8_t device_info[6];
 } __attribute__((packed));
 
-#if SOC_BLE_POWER_CONTROL_SUPPORTED && MYNEWT_VAL(BLE_HCI_VS)
-#define BLE_HCI_OCF_VS_PCL_SET_RSSI 			(MYNEWT_VAL(BLE_HCI_VS_OCF_OFFSET) + (0x0111))
+#define BLE_HCI_OCF_VS_LEGACY_ADV_CLEAR                 (MYNEWT_VAL(BLE_HCI_VS_OCF_OFFSET) + (0x010C))
+
+#if SOC_BLE_POWER_CONTROL_SUPPORTED
+#define BLE_HCI_OCF_VS_PCL_SET_RSSI                     (MYNEWT_VAL(BLE_HCI_VS_OCF_OFFSET) + (0x0111))
 #endif
 
 /* Command Specific Definitions */