[TRE-2948] Apply squashfsoptions_maxsize option for squashfs size limitation

[TRE-2948] Apply squashfsoptions_maxsize option for squashfs size limitation

If the compressed size is larger than squashfsoptions_maxsiz, MIC process will be terminated.

if item['squashfsoptions_maxsize']:
    squashfsoptions_maxsize=int(item['squashfsoptions_maxsize']) * 1024 * 1024
    imgsize = os.stat(self._imgdir+"/"+item['label']+fs_suffix).st_size
    if imgsize > squashfsoptions_maxsize:
        msger.error("squashfs img size is too large (%d > %d)" % (imgsize, squashfsoptions_maxsize))
        sys.exit()

Change-Id: I87f089865efdb3c8389b49f5554190d0d272796e
Signed-off-by: Hyotaek Shim <hyotaek.shim@samsung.com>