This MR:
- vkr drops transfer_3d support (not in use)
- get_blob_done is removed since vkr no longer needs it
- add a size query to pipe callbacks
- fill the size of PIPE_TEXTURE* allocated with minigbm
- let proxy ignore iovs since it doesn't support transfer_3d, so that classic 3d resource with valid size is allowed
TEST:
- on screen rendering works in arcvm
dEQP-VK.api.external.memory.android_hardware_buffer.*