Add macro defining Responder capable bit in Precision Time Measurement
capability register.

Link: https://lore.kernel.org/r/20220919143340.4527-2-vidyas@nvidia.comSigned-off-by: NVidya Sagar <vidyas@nvidia.com>
Signed-off-by: NLorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: NJingoo Han <jingoohan1@gmail.com>