commit 5c76581961786d78903639034d13e2af809ce496
author Cindy Liu <hcindyl@google.com> Fri Sep 03 02:04:56 2021 -0700
committer Cindy Liu <hcindyl@google.com> Fri Sep 03 02:22:58 2021 -0700
tree 7087c7fa6dfcafa9ea97ea6b3ea03c0e42920f27
parent 44b654078c91b167d3a3fb7b807e87a374550d06

sw:vec-iree: Add LOG_x support for QEMU Linux userspace emulation

Use fprintf as the stub for springbok LOG_x. QEMU Linux userspace emulation
would have the same print out as springbok simulation

```
$ out/host/qemu/qemu-riscv32 -cpu rv32,x-v=true,vlen=512,elen=32,vext_spec=v1.0 out/springbok_iree/samples/quant_model_embedding/daredevil_embedded_sync

Output #0 data length: 527

[[ iree_hal_allocator_t memory statistics ]]
  HOST_LOCAL:            0B peak /            0B allocated /            0B freed /            0B live
DEVICE_LOCAL:      1445663B peak /      1445663B allocated /      1445663B freed /            0B live
daredevil_quant finished successfully
```

Change-Id: Iced7b463537a491133add33f838c4c29a78ddfca