msm: vidc: skip biggest internal buffer allocation for slave side CP

For slave side content protection targets, memory alignment is 1MB.
Allocating biggest internal buffers size need more CMA heap size,
skip allocating max internal buffers size for slave side CP targets.

Change-Id: I553161485b062de6ad2a7e192232432cb62e87fc
Signed-off-by: Srinu Gorle <sgorle@codeaurora.org>
CRs-Fixed: 978521