Move private fields from cb_handle_t to cb_handle_30_t

cb_handle_30_t is our gralloc implmenetation detail
which is not accessible by other code.

Bug: 251042358
Test: boot emulator, m gralloc.goldfish
Change-Id: I828a75fde06fb69b045ea07e903941c300ca9c31
Signed-off-by: Roman Kiryanov <rkir@google.com>
4 files changed