Use libnativehelper to get access to NIO buffer internals

Changes to android_opengl_* are generated by editing glgen stubs and
re-running gen script.

Bug: 124338141
Test: atest CtsGraphicsTestCases

(cherry picked from commit 61783592)

Change-Id: I179f90177c8b1b50a923baecef3b5071a9a25ccf
Merged-In: I715123e66f4ace1d6a11a42c8eafc1d02995e88b