msm: cpp: Increase frame message max length

Frame message len depends on the number of stripes needed to
process the frame. Number of stripes increases when scale ratio
increases too. For big scale ratios we need big frame message
length.

Change-Id: Ibc2f5975390eb9968589361e3da1e0e22e3d5d39
Signed-off-by: Iliya Varadzhakov <ivarad@codeaurora.org>