Gralloc: Use handle reserved size while importing buffer

Instead of metadata reserved_size, use handle reserved size while
import as metadata reserved size can be modified by client which
can cause memory corruption.

Bug: 253297595
Change-Id: If274f0e9ad4bb83320d5c207d98bbd00679f3835
Signed-off-by: Guus Sliepen <[email protected]>
1 file changed