[WIP] Enable init values for Object FIFO

[AndraBisca]

This PR builds on top of #1801 to enable objectfifos to take as input an array of initial values.

Specifically:

• initial values should be of the MLIR type ElementsAttr,
• the above should also be of the same memref type as the objectfifo type,
• the initial values array should be of the same size as the depth of the objectfifo,
• the objectfifo lowering is modified to generate AIE_LockOps with init values such that the initialized objects will not be overwritten before they are communicated to the consumer(s).

[github-actions]

[black] _{reported by reviewdog 🐶}

Suggested change

	MemTile,
	MemTile,

[github-actions]

[black] _{reported by reviewdog 🐶}

Suggested change

	#of_in = object_fifo("in", ShimTile, MemTile, 1, tensor_ty)
	# of_in = object_fifo("in", ShimTile, MemTile, 1, tensor_ty)

[github-actions]

[black] _{reported by reviewdog 🐶}

Suggested change

	#object_fifo_link(of_in, of_out)
	# object_fifo_link(of_in, of_out)

[github-actions]

[black] _{reported by reviewdog 🐶}

Suggested change

	#npu_dma_memcpy_nd(metadata=of_in, bd_id=1, mem=A, sizes=[1, 1, 1, N])
	# npu_dma_memcpy_nd(metadata=of_in, bd_id=1, mem=A, sizes=[1, 1, 1, N])