Feedback on RISC-V Trace Control Interface Specification - Chapter 8

[ved-rivos]

1. Reword the first paragraph.
2. trFunnelDisInput - clarify #n corresponds to bit position
   n in the field.
3. trFunnelDisInput - Clarify that when a input is disabled
   it is still scheduled (e.g., using round-robin scheme
   described before) and the messages are extracted from the
   source but discarded.
4. Funnel timestamp unit is expected to be used as timestamp
   source for its sources. The trTsRunInDebug control is
   not applicable to a funnel and should be clarified.
   Which trTsType are applicable to funnels?

[mipsrobert]

All notes to Control PDF handled in 1.0.0_rc20.