Add the 'closeHandle' and 'memoryUnmap' functions

Since we have the 'release' functions, we need also
functions to recycle the resources they return.

Bug: 141385612
Test: build
Change-Id: Ifb0986b61e46058ebadf93d9e090ed77dddfc924
Signed-off-by: Roman Kiryanov <rkir@google.com>
3 files changed