hwupload_vaapi_gl: use va.h instead of va_x11.h
hwupload_vaapi_gl: use va.h instead of va_x11.h

We do not use any specific va/x11 function here.

gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl,gopro/gopro-lib-node.gl