Add HTT changes which are specific to RHINE architecture.
Some of the changes like dedicated TX endpoint service,
fastpath implementation and few other message handling
is different in RHINE. Current change add support for
RHINE specific HTT implementation.
Change-Id: I90c2d1d66cdadc5935e6b819e3f19e635c45cb51
CRs-Fixed: 3382915
84731a352a