hwc: Handle non secure buffers

When secure mode is on, skip overlay composition for
non secure buffers.

Bug: 7216266
Change-Id: I5fb1f3a26505bb69305e7d359bdb3a020baf193f
Acked-by: Amara Venkata Mastan Manoj Kumar<manojavm@codeaurora.org>
1 file changed