Use the dynamic mbuf to register timestamp field and flag.
The ice has the feature to dump Rx timestamp value into dynamic
mbuf field by flex descriptor. This feature is turned on by dev
config "enable-rx-timestamp". Currently, it's only supported
under scalar path.
Signed-off-by: Simei Su <simei.su@intel.com>
Acked-by: Qi Zhang <qi.z.zhang@intel.com>
953e74e6b7