msm: camera: restructure data handling to be more robust

add dynamic array allocation instead of static to prevent
stack overflow.

Bug: 30102557
Change-Id: I364a5ed1842757a45bcfa34cf7d2bd9436095779
Signed-off-by: Vasko Kalanoski <vaskok@codeaurora.org>
Signed-off-by: Yueyao (Nathan) Zhu <yueyao@google.com>