faad2: bump to version 2.8.8

Drop patch; issue fixed upstream.

Add license file hash.

Revert back to .tar.gz since that is what upstream provides.

Remove autoreconf; tarball has configure script.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Peter Korsgaard <peter@korsgaard.com>