Add total GPU usage report into dumpsys meminfo output

With latest kernel changes, total GPU memory usage is reported and can
be obtained via a BPF program. Create JNI interface to query it and
report inside dumpsys meminfo output.

Bug: 171261987
Test: dumpsys meminfo
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Merged-In: I949a13836d5b5bc87fc43f60871b4fbf2add6480
Change-Id: I949a13836d5b5bc87fc43f60871b4fbf2add6480