hal: Revert copyright change for maxaudio file

Revert copyright change for thrid party copyright
files maxaudio.c and maxaudio.h

Change-Id: Ieeac155a5bbfcb4ff85881cb29a2b770dfa7e1a5
Signed-off-by: Vatsal Bucha <vbucha@codeaurora.org>
2 files changed