[mlir][ods] Add tablegen field for concise printing of BitEnum attributes

This diff introduces a tablegen field for bit enum attributes
(`printBitEnumPrimaryGroups`) to control printing when the enum uses "group"
cases. An example would be an implementation that uses a `fastmath` enum value
as an alias for individual fastmath flags. The proposed field would allow
printing of simply `fast` for the enum value, instead of the more verbose list
that would include `fast` as well as the individual flags (e.g. `reassoc,nnan,
ninf,nsz,arcp,contract,afn,fast`).

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D123871

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