[mlir][acc] Ensure implicit declare hoisting works for compute_region (#192501)

Any hoisting across `acc.compute_region` needs to be wired through block
arguments as the region is `IsolatedFromAbove`. Thus update
`ACCImplicitDeclare` to do so by using new API
`wireHoistedValueThroughIns` which handles the value wiring after
hoisting.

GitOrigin-RevId: 19ad75ef7f14e012fa8dac8312d0af4cdd806ee1