libmemtrack: Revert back the AOSP copyright years to 2013

AOSP copyright years are incorrectly updated to 2013, 2016.
Revert back AOSP copyright years to 2013 to as per requirement.

Change-Id: I2235f415ce7c40d03f3060d4ac2bbb8690cce6d0
Signed-off-by: Hareesh Gundu <hareeshg@codeaurora.org>
1 file changed