[TOPI] Update names for pooling ops

[abhikran-quic]

• Explicit names are useful while fetching the compute during scheduling of pooling ops.
• Specify meta_schedule attributes to register op using register_func.

cc: @csullivan

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[leandron]

LGTM, thanks @abhikran-quic

[csullivan]

Thanks @abhikran-quic, @leandron, this is merged.

[abhikran-quic]

Thanks @csullivan , @leandron :)