meson: bump libdrm_amdgpu requirement to 2.4.85
fixes: b6037257 ("configure.ac: Bump libdrm_amdgpu version to 2.4.85.") Signed-off-by:Dylan Baker <dylanx.c.baker@intel.com> Reviewed-by:
Eric Anholt <eric@anholt.net> Reviewed-by:
Bas Nieuwenhuizen <bas@basnieuwenhuizen.nl>