asdk-repo-libdce

[QNX] Remove dependency on QNX TILER for memory allocation

Previously dce_alloc() call will always reserve the memory from QNX
TILER 1D. The same case happens when it calls memplugin_alloc since the
definition of DEFAULT_REGION is set to MEM_TILER_1D for QNX.

Since there is a known issue of DMA lockup due to MPU side performing memory copy
into the TILER memory, this patch limits the use of QNX TILER.
With this patch, dce_test and dce_enc_test can be executed without QNX TILER
allocation.

DCE test apps are also updated to allocate the memory through
shmemallocator instead of QNX TILER.

The capability to:
   allocate TILER output buffer for decoder and
   allocate TILER input buffer and output buffer for encoder
are still existed as part of the dce_test or dce_enc_test input parameter 'tiler'
vs 'nontiler'

Change-Id: I33e2a9dd83c791cc2621e548628715abaeae871d
Signed-off-by: Buddy Liong <buddy.budiono@ti.com>