Add NOTICE file

1. AOSP_APACH2
2. BSD for bsdiff.c and bspatch.c

Bug: 6299628

Change-Id: If9a5f7f8f07ad51bb62202253da189d804674e54
Signed-off-by: Wei Zhong <wzhong@google.com>
(cherry picked from commit 592e7a9cf1c856bee2adb8f285ac359e2d7f68e1)
1 file changed