tspp2: Support new TSPP2 HW unit

TSPP2 (Transport Stream Packet Processor v2) is a new HW unit
designed to process MPEG-2 Transport Stream data. It is used
to offload the CPU when processing broadcast TV services. TSPP2
supports live playback from TSIF input as well as playback from
memory. Recording is also supported.
The TSPP2 driver supports the TSPP2 HW unit, enabling the
functionality it provides.

Change-Id: Ic9893a36a8f06ae899bf9df93d51e2b984ba9c7d
Signed-off-by: Liron Kuch <lkuch@codeaurora.org>