ts2phc: Reset parser after RMC message. When the receiver was configured to generate only RMC messages, every other message was skipped due to the parser not being in the right state to process another message. Reset the parser to correctly parse every valid message. Signed-off-by: Miroslav Lichvar <mlichvar@redhat.com> Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>