net/bnxt: fix timesync when PTP is not supported
net/bnxt: fix timesync when PTP is not supported

Fixed to return error when PTP support is not supported on the port.
Also, removed an unnecessary check inside bnxt_get_rx_ts().

Fixes: b11cceb83a34 ("net/bnxt: support timesync")
Cc: stable@dpdk.org

Signed-off-by: Kalesh AP <818b6a3caba85cc3a76890be15484140b8e9f23b@broadcom.com>
Reviewed-by: Ajit Khaparde <01965fbd61169dc18f3fb5e13de7f67d298f8924@broadcom.com>
Reviewed-by: Somnath Kotur <b8220280eb86080d22ca0cb32db0b374b9a89cc6@broadcom.com>

john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk,john-mcnamara-intel/dpdk