Bowen Wang af39ee49d8 virtio-mmio: use nuttx implemented io operation instead libmetal's
Openamp/libmetal's metal io operation used the atomic operation, but
in QEMU 8.1.2, the risc-v IO region is not allow to use atomic instruction
in SMP case.

Signed-off-by: Bowen Wang <wangbowen6@xiaomi.com>
2023-11-17 09:42:52 +01:00
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