libva: Fix for when using `userland`
libva: Fix for when using `userland`

https://github.com/agherzan/meta-raspberrypi/issues/842

Fixes failing build of libva when using `userland` recipe.
Same as: https://github.com/agherzan/meta-raspberrypi/commit/ac16b0e9d713bcc4ee0e976259064d1a318a5aac

Signed-off-by: Matt Hammond <fc7dcaf7235b54747d90d116cfb852800c196c47@bbc.co.uk>
Signed-off-by: Khem Raj <729d64b6f67515e258459a5f6d20ec88b2caf8df@gmail.com>

schnitzeltony/meta-raspberrypi,schnitzeltony/meta-raspberrypi,agherzan/meta-raspberrypi,schnitzeltony/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi,agherzan/meta-raspberrypi