add sload_f2fs to Android SDK build-tools

Change-Id: Iaaec0cbf6a2b43147a75077db9c91ae10cccc668
Signed-off-by: Jaegeuk Kim <jaegeuk@google.com>
(cherry picked from commit 619723d2e6cc3f205717436f97cb4cd57ab5efe1)
1 file changed