HiKey960: Drop installation instructions for vendor codec package

The vendor codec package doesn't work with 4.14+ kernels, and
is now causing build issues, so its time to stop using it.

Stop including the Make file, and remove the installation nag
message from the build so folks don't continue to install it.

Signed-off-by: John Stultz <john.stultz@linaro.org>
Change-Id: If59fc36871cae6c78917660789ecd3109e05aa59
1 file changed