bnxt_en: fix free-runnig PHC mode

The patch in fixes changed the way real-time mode is chosen for PHC on
the NIC. Apparently there is one more use case of the check outside of
ptp part of the driver which was not converted to the new macro and is
making a lot of noise in free-running mode.

Fixes: 131db499 ("bnxt_en: reset PHC frequency in free-running mode")
Signed-off-by: Vadim Fedorenko <vadfed@meta.com>
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://lore.kernel.org/r/20230418202511.1544735-1-vadfed@meta.comSigned-off-by: Jakub Kicinski <kuba@kernel.org>

drivers/net/ethernet/broadcom/bnxt/bnxt.c

@@ -2388,7 +2388,7 @@ static int bnxt_async_event_process(struct bnxt *bp,
 	case ASYNC_EVENT_CMPL_EVENT_ID_PHC_UPDATE: {
 		switch (BNXT_EVENT_PHC_EVENT_TYPE(data1)) {
 		case ASYNC_EVENT_CMPL_PHC_UPDATE_EVENT_DATA1_FLAGS_PHC_RTC_UPDATE:
-			if (bp->fw_cap & BNXT_FW_CAP_PTP_RTC) {
+			if (BNXT_PTP_USE_RTC(bp)) {
 				struct bnxt_ptp_cfg *ptp = bp->ptp_cfg;
 				u64 ns;