venus: add VK_VALVE_mutable_descriptor_type support
virglrenderer:virgl/virglrenderer!855 (merged) venus-protocol:https://gitlab.freedesktop.org/olv/venus-protocol/-/merge_requests/43
deqp-case=dEQP-VK.binding_model.mutable_descriptor.*
Test run totals:
- Passed: 8388/14304 (58.6%)
- Not supported: 5916/14304 (41.4%)
Signed-off-by: Dawn Han dawnhan@google.com
Edited by Dawn Han